Description : According to Ohm’s law, what happens to circuit current if the applied voltage (a) increases, (b) decreases?
Last Answer : (a) Current increases (b) Current decreases
Description : What happens to the resistance when the current increases?
Last Answer : Resistance reduces when current increases.
Description : What happens to the angle between current and voltage, when a small capacitance is added in series with a highly inductive circuit? (A) Increases (B) Remains same as earlier angle (C) Decreases (D) Becomes indeterminant
Description : when voltage drops what happens to current?
Last Answer : This depends on the power of the source.If power is kept constant then the voltage increases with decrease in current (P=VI) .But if lets say the source is replaced by new batteries then the current increases (V=IR).
Description : What happens to current flow in a capacitive circuit when the DC voltage across the capacitor is approximately equal to the source voltage?
Last Answer : Capacitor always charges up to the voltage of source. When the capacitor is charged to same as source voltage then there is no current flowing through the capacitor. The current through the capacitor is called displacement current.
Description : A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current decreases.
Last Answer : The question seems to be wrong. Increase in frequency would actually decrease the current through the Inductor. This happens because inductive reactance Xl is directly proportional to frequency. And if frequency increases the value of Xl would ... vice versa. Xl= 2*pi*f*L I=E/Z Z=sqrt(R^2+Xl^2)
Description : What happens to the permeability of an iron core as the current increases from the operating point to a large value?
Last Answer : Permeability decreases
Description : According to Ohm’s law, what happens to circuit current if circuit resistance (a) increases, (b) decreases?
Last Answer : (a) Current decreases (b) Current increases
Description : What happens insulators when high voltage passes through transmission lines whether it breaks or lose it's insulating property?
Last Answer : I think it will breaks when it crosses breakdown voltage .
Description : What happens to the voltage in the secondary when the frequency of the supply in the primary is decreased? A) It increases B) It decreases C) It remains the same D) Cannot say unless the actual percentage increase in the frequency is known
Last Answer : What happens to the voltage in the secondary when the frequency of the supply in the primary is decreased? A) It increases B) It decreases C) It remains the same D) Cannot say unless the actual percentage increase in the frequency is known
Description : What happens when a current flows through a wire?
Last Answer : Current can produce two effect one is heating effect and second is magnetic effect.