BASIC ELECTRICAL PRACTICE - Practice Mode

1) What is the name of the resistor if its resistance value increase with increase in temperature?

Varistors Sensistors Thermistors Light Dependent Resistor (LDR)

Correct Answer: Sensistors

2) What is the formula for Quantity of electricity (Q)?

Current x Time Voltage x Current Current x Resistance Voltage x Resistance

Correct Answer: Current x Time

Explanation:

The unit of quantity of electricity is called the coulomb.

A coulomb is the quantity of electricity which passes any point in a circuit in 1 second when a steady current of 1 ampere is flowing. It follows that the total quantity of electricity Q, in coulombs, which passes any point in an electric circuit is given by multiplying the current I, in amperes, by the time t, in seconds.

The formula for Quantity of Electricity (Q) is = Current x Time

3) What is the unit of conductance?

Mho Ohm Ohm-m Ohm/m

Correct Answer: Mho

4) Which one defines the change in resistance in Ohm per degree centigrade ( Degree Centigrade)?

Temperature effect Laws of temperature Temperature constant Temperature co-efficient

Correct Answer: Temperature co-efficient

5) Which type of meter is used to test the polarity of battery?

Moving iron ammeter Moving coil voltmeter Moving iron voltmeter Dynamo meter type wattmeter

Correct Answer: Moving coil voltmeter

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