EMF in a circuit: Maintains the potential differenceDecreases resistance of circuitIncreases resistance of circuitNone of these

## MCQs.net Latest Questions

Temperature coefficient of resistance of Eureka is: PositiveNegativeZeroNone of these

The electric power dissipated in a resistor in terms of its conductance G and voltage V across it is mathematically expressed in the form: V²GV²/GGV²G/V²

A wire having high value of conductance is said to be: Moderate conductorGood conductorInsulatorNone of these

The drift velocity of free electrons is of the order: 1 m/s10-3 m/s10-5 m/s10-9 m/s

Electric current is a: Vector quantityScalar quantityAny of aboveNone of above

Certain length of wire has a resistance of 6 ohms. What is the value of resistance of wire that is three times long and having two times the cross-sectional area: 1 ohm4 ohm9 ohm12 ohm

When 2 V is applied in a circuit, a current of 2 µA flows through it. The conductance of circuit is: 0.5 µmho1 µmho2 µmho5 µmho

The specific resistance of material of wire depends on: MassLengthArea of cross-sectionNone of these

The voltage required to create a flow of 0.3 C in 0.6 s through a resistance of 500 Ω is: 100 V200 V250 V300 V