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What is the definition of electromagnetic force?

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Description : What are the electromagnetic waves used in remote control?

Description : What are the dangers of electromagnetic waves?

Description : What is the speed of an electromagnetic wave in water?

Description : What is an example of an electromagnetic?

Description : What do you mean by electromagnetic field?

Description : How fast is an electromagnetic wave?

Description : What is the force that holds protons and neutrons together in the nucleus of an atom?

Description : What is the definition of induction motor?

Answer : its working on magnetic base made by coils and its work with 1 phase or 3 phase ac or dc supply

Description : What is the definition of electronic communication?

Description : What is the definition of a primary instrument?

Description : What is the definition of extra low voltage?

Answer : Extra-low voltage (ELV) is an electricity supply voltage in a range which carries a low risk of dangerous electrical shock.

Description : What is the definition of brownout?

Description : What is the definition of an electrical system?

Description : What is the definition of wind energy?

Answer : Motion of atmosphere of earth is called wind and its kinetic energy is called wind energy

Description : What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz

Answer : What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz

Description : Define Faraday’s first law of electromagnetic induction. 

Answer : Faraday’s First Law: Whenever a changing magnetic flux links with a conductor, an emf is induced in that conductor.  OR  When a conductor cuts across magnetic field, an emf is induced in that conductor.

Description : State advantages & disadvantages of electromagnetic flow meter.

Answer : Advantage: Provides wide linear range. 2) Ability to measure reverses flow. 3) Gives rapid response to flow changes. 4) No obstruction is created to flow. 5) It can handle corrosive as ... and pipe networks with relatively short inside diameters. 3) It is useful for electrically conducting fluid.

Description : i) Explain electromagnetic spectrum with neat diagram. ii) Explain atmospheric noise with example. 

Answer : Explanation:-  The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths  The electromagnetic spectrum covers ... spread over the complete frequency spectrum used for radio communication.  Example: Lightning 

Description : Justify electromagnetic wave is said to be transverse wave. 

Answer : Transverse electromagnetic wave:- The electromagnetic waves are oscillations which propagate through free space. In electromagnetic waves the direction of electric field, magnetic field & propagation are ... electric field vector with respect to the surface (i.e. looking at the horizon) 

Description : State Faraday's law of electromagnetic induction.

Answer : First Law: - Whenever change in the magnetic flux linked with a coil or conductor, an EMF is induced in it. OR Whenever a conductor cuts magnetic flux, an EMF is induced in conductor.  Second Law: ... of induced EMF is directly proportional to (equal to) the rate of change of flux linkages.

Description : What is locomotive force?

Description : State principle of transmissibility of force.

Answer : Principle of Transmissibility of Force: It states that if a force acts at a point on a rigid body, it is assumed to act at any other point on the line of action of force within the same body. 

Description : Define force and state its effects.

Answer : Force: It is an external agency either push or pull which changes or tends to change the state of rest or of uniform motion of a body, upon which it acts. Effects of force : i) It may change the state ... It may turn or rotate the body on which it acts. iv) It may deform the body on which it acts.

Description : State law of Parallelogram of force.

Answer : Law of Parallelogram of force: It states that if two forces acting at and away from point be represented in magnitude direction by the two adjacent sides of parallelogram, then the ... passing through the point of intersection of the two forces represents the resultant in magnitude direction .

Description : State characteristics of force.

Answer : i) Magnitude: The quantity of force e.g. 10 N, 100 kN etc.  ii) Direction: It is the line along which the force acts. It is also called as line of action of the force.  iii) Point of ... .  Push: If the arrow head is pointed towards the point of application, the nature of the force is push.

Description : Magnetomotive force formula

Answer : Magnetomotive force formula

Description : Define magnetic lines of force. Also draw and show magnetic lines of force of a bar type magnet.

Answer : Magnetic Lines of force- These are the imaginary lines (having no physical existence) introduced by Faraday for the pictorial representation of the distribution of a magnetic field.  OR  A line of ... that the tangent at any point gives direction of the resultant force at that point. 

Description : Define magnetic lines of force. Show the magnetic lines of force for bar type magnet.

Answer : Magnetic linens of force is the imaginary lines for magnetic field of magnet around it. These magnetic lines of forces are introduced by Michael Faraday. The direction of lines of force is from N-pole to S-pole. The figure shows lines of force for bar type magnet.

Description : Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative surface? A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity

Answer : Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative ... A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity

Description : A field of force can exist only between?

Answer : A field of force can exist only between two ions.

Description : A single force and a couple acting in the same plane upon a rigid body?

Answer : A single force and a couple acting in the same plane upon a rigid body cannot balance each other.

Description : Limiting force of friction is the?

Answer : Limiting force of friction is the friction force acting when the body is just about to move.

Description : Frictional force encountered after commencement of motion is called?

Answer : Frictional force encountered after commencement of motion is called dynamic friction.

Description : On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be?

Answer : On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be zero at its upper end.

Description : On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be?

Answer : On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be upwards at its upper end.

Description : The product of either force of couple with the arm of the couple is called?

Answer : The product of either force of couple with the arm of the couple is called moment of the couple.

Description : A force is completely defined when we specify?

Answer : A force is completely defined when we specify magnitude, direction, point of application.

Answer : Effect of a force on a body depends upon magnitude, direction, position or line of action.

Description : A force acting on a body may?

Answer : A force acting on a body may introduce internal stresses, balance the other forces acting on it, retard its motion, change its motion.

Description : The unit of force in S.I. units is

Answer : The unit of force in S.I. units is Newton.

Description : In the hydrogen atom, the electron and proton are bound together by A. gravitational force. C. nuclear force. E. none of the above. B. electromagnetic force. D. chemical force.

Answer : B. electromagnetic force.

Description : The Grand Unified Theory of the forces of nature combines three of the four forces. Which force is NOT included? w) gravitational x) electromagnetic y) weak nuclear z) strong nuclear

Answer : ANSWER: W -- GRAVITATIONAL

Description : The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current of peak value 20 A is  (A) 10 A (B) 14.14 A (C) 15 A (D) 17.32 A

Answer : The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current of peak value 20 A is 17.32 A

Description : The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper tube of 60 mm diameter is  (A) 3.2 µH (B) 3.2 mH (C) 32.0 mH (D) 3.2 H

Answer : The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper tube of 60 mm diameter is 32.0 mH

Description : How can a magnetic field be used to generate an electric current?

Answer : Magnetic  field  can  be  used  to  generate  electric  current  on  a  condition  that  it  is  on  a  rate  of  changing  magnetic  flux.  (Faraday's  law)

Description : Why is electromagnetism so important?

Description : How is electromagnetism used today?

Answer : The base of electrical engineering is electromagnetism. You found electromagnetism everywhere in a electrical devices around you.

Description : What does the definition of violence against women adopted by the United Nations Declaration on the Elimination of Violence Against Women include? a) Only domestic violence b) Only violence perpetrated or condoned by the State c) Both

Answer : c) Both  

Description : What is the definition of one Astronomical Unit? 

Answer : ANSWER: IT IS THE DISTANCE FROM THE SUN TO THE EARTH. (Accept AVERAGE DISTANCE or AVERAGE RADIUS or RADIUS OF EARTH'S ORBIT)

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