Circuit Elements#!#Ohms law#!#Factors Affecting Resistance

Which of the following factors does NOT affect the resistance of a conductor?

Ohm’s Law states that:

Tutorial based on Current | ohm's law and resistance

In the given circuit, the voltmeter records 5 volts. The resistance of the voltmeter in ohms is

In an AC circuit, the reactannce is equal to the resistance. The power factor of the circuit will be

Power factor of an L-R series circuit is 0.6 and that of a C-R series circuit is 0.5. If the element (L. C, and R) of the two circuits are joined in series the power factor of this circuit is found to be 1. The ratio of the resistance in the L-R circuit to the resistance in the C-R circuit is

The power factor of an L-R series circuit is 0.5 and that of a C-R series circuit is 0.2. If the elements (L, C and R) of the two circuit are joined in series and connected to the same ac source, the power factor of this circuit is found to be 1. The ratio of the resistance in the L-R circuit to the resistance in the C-R circuit is

A resistance of 6 ohms is connected in series with another resistance of 4 ohms. A potential difference of 20 volts is applied across the combination. Calculate the current through the circuit and potential difference across the 6 ohm resistance.