Resistance of a material always decreases if___________?

Related Mcqs:

Internal resistance of ideal voltage source is ?

A. zero B. infinite C. finite D. 100 ohms...

Which is the best conductor of electricity _______________?

A. Iron B. Silver C. Copper D. Carbon...

Two lamps 100 W and 40 W are connected in series across 230 V (alternating). Which of the following statement is correct ?

A. 100 W lamp will glow brighter B. 40 W lamp will glow brighter C. Both lamps will glow equally bright D. 40 W lamp will fuse...

74. Sparking occurs when a load is switched off because the circuit has high_________?

A. resistance B. inductance C. capacitance D. impedance...

If/, R and t are the current, resistance and time respectively, then according to Joule’s law heat produced will be proportional to_______________?

A. I2Rt B. I2Rf C. I2R2t D. I2R2t*...