Electricity & Magnetism MCQs with Answers

Electrical analog of mass in electricity is _?

• A.Capacitance
• B.Conductance
• C.Resistance
• D.Inductance

The _ is used to indicate the amount of current flowing to and from the battery.

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

What is electrical energy?

• A.Electromagnetic waves traveling through space
• B.Static charge accumulated on a surface
• C.Vibrations of molecules in a medium
• D.Moving electrons in an electric conductor

Two metallic conductors have the same value of resistivity. These conductors can be differentiated from the values of their?

• A.Mass
• B.Length
• C.Cross-sectional area
• D.Temperature coefficient of resistance

Metals are good conductors of electricity because they have free _?

• A.Protons
• B.Electrons
• C.Neutrons
• D.Ions

When the wire is disconnected and the bulb is off, this is called?

• A.Short Circuit
• B.Open Circuit
• C.Closed Circuit
• D.Parallel Circuit

The capacitance of a parallel plate capacitor depends upon ?

• A.Area of the plates
• B.Distance between the plates
• C.Nature of the dielectric medium
• D.All of these

Transformer is used to _?

• A.Convert DC to AC voltage
• B.Convert AC to DC voltage
• C.Increase and decrease DC voltage
• D.Increase and decrease AC voltage (Steps up or steps down A.C. voltage)

A proton and an alpha particle enter in the same magnetic field with equal speeds, compared to proton, the alpha particle's path will have ?

• A.No curvature
• B.Smaller radius
• C.Same radius
• D.Larger radius

The _ is the unit used for an electrical generator or transformer to express its value/capacity.

• A.KVA
• B.KW
• C.KWh
• D.KV