The hot resistance of the bulb’s filament is higher than its cold resistance because the temperature co-efficient of the filament is___________________?

Related Mcqs:

Which of the following are the passive elements?

A. Resistor B. Bulb C. Both D. None of these....

The substances which have a large number of free electrons and offer a low resistance are called____?

A. insulators B. inductors C. semi-conductors D. conductors...

Which of the following material has nearly zero temperature co-efficient of resistance_________?

A. Manganin B. Porcelain C. Carbon D. Copper...

If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes______________?

A. 0.4 ohm B. 0.6 ohm C. 0.8 ohm D. 1.0 ohm...

When one leg of parallel circuit is opened out the total current will______________?

A. reduce B. increase C. decrease D. become zero...