Engineering

Current Electricity MCQs: 30 Questions & Answers in Engineering

30 Current Electricity MCQs in Engineering with answers & explanations. Practice objective questions for competitive exams, interviews & self-assessment — fr… Use the answer toggle below to show or hide all solutions, tap an option to check one question, or open a question for its own page.

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Current Electricity MCQs: 30 Questions & Answers in Engineering

1 angstrom is equal to

A 3 Q resistor having 2 A current will dissipate the power of

A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will

A closed switch has a resistance of

A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is

A field of force can exist only between

A glass rod when rubbed with silk cloth is charged because

A nichrome wire used as a heater coil has the resistance of 2 £2/m. For a heater of 1 kW at 200 V, the length of wire required will be

A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is

A resistance having rating 10 ohms, 10 W is likely to be a

Bulbs in street lighting are all connected in

__________ are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators.

An open resistor, when checked with an ohm-meter reads

An instrument which detects electric current is known as

An electric filament bulb can be worked from

All good conductors have high

All of the following are equivalent to watt except

A thermistor has

A substance whose molecules consist of dissimilar atoms is called

A rheostat differs from potentiometer in the respect that it

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