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Rubber is a insulator it do not allow flow of current so electricity can not flow through rubber.
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What kinds of materials can not electricity pass through?

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No. Wood is an insulator and it doesn't free electrons to flow in it.

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Description :

How is electricity passed through a wire?

Answer :

A  wire contains  mobile  electrons  as  majority  charge  carriers  and  holes  as minority  charge carriers when  an emf  or   potential  diffrence is  provided , electrons  flow  in opposite  direction  with  holes(convection current  flow)

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Description :

List at least two examples that show how static electricity can be generated.

Answer :

Examples of how static electricity can be generated include combing your hair, walking across a carpeted room, or sliding two pieces of plastic across each other.

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necessity of transmission of electricity.

Answer :

 Because of following points there is necessity of transmission of power:   1. Electrical load on power system is not concentrated at one place but it is widely spread.  2. Load ... to the point of actual utilization of it (consumers) for this purpose transmission electricity is necessary. 

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Describe the concept of Ferro electricity. Explain the application of Ferro electric material

Answer :

The ferroelectric material has an electric dipole moment and it is spontaneously polarized. They have high dielectric constant which is nonlinear because it is dependent on the intensity of ... used in condensers to concentrate considerable quantities of electric energy within a small space. 

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Description :

The consumer of electricity could be : (A) Domestic (B) Agricultural (C) Industrial and Commercial (D) All of the above 

Answer :

The consumer of electricity could be : (A) Domestic (B) Agricultural (C) Industrial and Commercial (D) All of the above 

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The Central Electricity Regulatory Commission (CERC) is mainly responsible for:  (A) Regulating tariffs for generation and inter-state transmission of energy including tariffs  (B) Advising the government on tariff policy and promoting competition  (C) Efficiency and economy in the electricity industry  (D) All of the above

Answer :

The Central Electricity Regulatory Commission (CERC) is mainly responsible for:  (A) Regulating tariffs for generation and inter-state transmission of energy including tariffs  (B) Advising the government on ... (C) Efficiency and economy in the electricity industry  (D) All of the above

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As per Electricity Act, ____________means any line which is used for carrying electricity for any purpose.  (A) Electric line (B) Transmission line (C) All of the above (D) None of the above

Answer :

As per Electricity Act, Electric line means any line which is used for carrying electricity for any purpose. 

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To avoid electric shock from electrical appliances to the human body 

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Electricity is generated at electrical power generation station.

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Define the terms: i) Tariff ii) Fuel surcharge iii) Electricity Duty iv) Connected load

Answer :

i) Tariff: The rate at which a consumer is charged for the consumption of electricity is called as tariff. OR The amount of money framed by the supplier for the supply of electrical energy ... is the total wattage of all appliances which are used by the consumer on his sanctioned connection. 

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Description :

Define the following terms related to tariff: (i) Connected load (ii) Unit consumed (iii) Fixed charges (iv) Electricity Tax 

Answer :

(i) Connected load  It is the sum of the power ratings (Watts or kW or MW) of all devices and machines existing (installed) in the premises of consumer. It is used to decide the ... a percentage of the total electricity bill which includes all amounts that go to the electricity supply agency. 

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Answer :

Integrating instruments are those which measure the total quantity of electricity delivered in a particular time.

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How do magnets and copper wire make electricity?

Answer :

According  to  Faradays  law , a changing  magnetic  field  on  a  conductor  induses  current  in  the  conductor  through   mutual  induction.

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Is electricity generated in AC or DC?

Answer :

Electricity   is  generated  in  AC.

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What do we use to generate electricity?

Answer :

Use wind turbines.  In a windy seashore we set up some wind turbines.  But when the place is not windy we got no electricity.

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How much electricity is produced by a power plant?

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Is Aluminium a good conductor of electricity?

Answer :

Yes aluminium is a conductor and it is a good conductor of electricity. But copper have better conductivity as compare to aluminium.

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How electricity is transmitted and distributed?

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How electricity is distributed?

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How much is 1 unit of electricity?

Answer :

1 unit of electricity is equal to 1 kWh.

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Is electricity faster than lightning?

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What speed does electricity travel at?

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Is it AC or DC electricity in the home?

Answer :

Obviously its A.C

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How the electricity is transmitted?

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Why do you need a closed circuit for electricity to flow?

Answer :

When  the  circuit  is  closed  , a potential  diffrence  is  realized  between  the  two  nodes  connected  .This  causes  flow of  electrons  and  convection  current.

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How does the electricity travel?

Answer :

Electricity can only travel when there is a force pushing it. This force is called electromotive force. Take a look at  a water pump. When you on it force(EMF)will be applied to the ... its specified destination. This same process is applied to  electricity. EMF is required to start the process. 

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How do we use nuclear energy to generate electricity?

Answer :

nuclear energy is produce by nuclei of atom

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How does electricity get from the power plant to your home?

Answer :

Electricity  gets  into   my   home  due  to  potential  diffrence  created   between  the  live   wire  and  neutral  wire.

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which device converts sound to electricity ?

Answer :

Microphone converts sound to electricity.

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Do you think is DC better than AC to transmit energy?

Answer :

In Long distance DC transmission will be better in cost. It requires more equipments for flexiblity In short distance AC transmission is better in  cost. It is more Flexible

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Description :

Which of the following is a conductor of electricity ? (1) Rubber (2) Pure water (3) Salt water (4) Benzene

Answer :

Salt water

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Which of the following is a good conductor of heat but a bad conductor of electricity ? (1) Celluloid (2) Rubber (3) Asbestos (4) Mica

Answer :

Mica

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"Either do not attempt at all, or go through with it." - Ovid  

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A pupil should definitely be encouraged to go to college if Options: A) He has better than the average intelligence B) He has financial backing to see him through C) He has met high-school graduation requirements D) All the above are true and he wishes to go

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D) All the above are true and he wishes to go 

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Explain the construction and working of electricity generation through photovoltaic system.

Answer :

Construction-A photovoltaic (PV) system is a system composed of one or more solar panels combined with an inverter and other electrical and mechanical hardware that use energy from the Sun to generate ... power electronics locally, or be sent on to the electrical grid for use elsewhere.

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Description :

In vulcanisation process, rubber can be hardened by adding (1) Nitrogen (2) Silicon (3) Sulphur (4) Alcohol

Answer :

Sulphur

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Description :

A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that (1) The rubber ball suffers greater change in momentum (2) The metal ball suffers greater change in momentum (3) Both suffer the same change in momentum (4) The initial momentum of the rubber ball is greater than that of the metal ball

Answer :

The rubber ball suffers greater change in momentum 

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Would you like me to give you a formula for... success? It's quite simply, really. Double your rate of failure... You're thinking of failure as the enemy of success. But it isn't at all... You can be discouraged by failure -- or you can learn from it. So go ahead and make mistakes. Make all you can. Because, remember that's where you'll find success. On the far side of failure. - Thomas J. Watson famous quote

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"Only those who will risk going too far can possibly find out how far they can go." - T.S. Eliot 

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"Only those who risk going too far can possibly find out how far one can go." - T.S. Eliot

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Consider the Assertion-I and Assertion-II and select the right code given below : Assertion-I : Even Bank-lockers are not safe. Thieves can break them and take away your wealth. But thieves cannot go to heaven. So you should keep your wealth in heaven. Assertion-II : The difference of skin colour of beings is because of ... argument but the assertion-II is not. (C) The assertion-II is an argument but the assertion-I is not. (D) Both the assertions are explanations of facts.

Answer :

(B) The assertion-I is an argument but the assertion-II is not.

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In short run, if a competitive firm incurs losses, it will (1) stop production. (2) continue to produce as long as it can cover its variable costs. (3) raise price of its product. (4) go far advertising campaign.

Answer :

stop production.

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Sulphur dioxide level in the atmosphere can be reduced by using (1) more efficient car engines (2) catalytic converters in industry (3) static electricity to attract it in factory chimneys (4) low - sulphur fuels

Answer :

low - sulphur fuels

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Description :

Copper wires are generally used for electrical power transmission instead of iron wire because : (1) copper is cheaper than iron (2) copper is lighter than iron (3) copper is a better conductor of electricity than iron (4) copper can take higher power than iron 

Answer :

copper is a better conductor of electricity than iron

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Can you make alternating current through a battery?

Answer :

Yes, we can make AC through a battery using an inverter.

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Give the properties and application of following materials :i) mica ii) rubber

Answer :

i) Mica: Properties of Mica:  1. It has very high resistance 2. It is heat resistant, moisture resistant, it has good elasticity and is fire proof 3. It retains its electrical and mechanical ...   Applications of Rubber: 1. It is extensively used as insulation on wires, cables etc.

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