Electricity & Magnetism MCQs with Answers

Two resistances of 2Ω each are connected in parallel to each other, the resultant resistance will be _?

• A.1Ω
• B.2Ω
• C.4Ω
• D.0.5Ω

When current passes through a bulb, it converts electrical energy into ?

• A.Light energy
• B.Heat energy
• C.Both A and B
• D.Sound energy

The movement of free electrons is called ?

• A.Electric Current
• B.Electric Potential
• C.Electric Resistance
• D.Electric Power

Always select _ range of the current meter while measuring current of unknown wire.

• A.Maximum
• B.Minimum
• C.Medium
• D.Any range

Value of 1 Faraday is equal to ?

• A.96500 C
• B.9650 C
• C.965000 C
• D.96.5 C

The number of terminals in a semiconductor diode are ?

• A.1
• B.2
• C.3
• D.4

What is the sensitive instrument which represents the presence of current?

• A.Ammeter
• B.Electroscope
• C.Voltmeter
• D.Galvanometer

You can sprinkle iron filings around a magnet. Where will iron filings be attracted more?

• A.At the poles
• B.At the center
• C.Uniformly throughout
• D.At the edges only

A neutral body is rubbed and its charge becomes positive. It must have?

• A.Gained protons
• B.Lost electrons
• C.Gained neutrons
• D.Lost protons

Which of the following quantities remain constant in a step-up transformer?

• A.Current
• B.Voltage
• C.Power
• D.Resistance