Principles of voltage, current & resistance measurement – 1 – 1

1. Ammeter is used to measure :

(a) Small current (mA, μA)
(b) Large current (A)
(c) Small Voltage
(d) Large Voltage

ANSWER

EXPLANATION

2. Voltmeter is used to measure the :

(a) Current
(b) Resistance
(c) Temperature
(d) Voltage

ANSWER

EXPLANATION

3. Electrical measuring instruments are devices, which convert :

(a) Heat energy into electrical energy
(b) Chemical energy into electrical energy
(c) Electrical energy into mechanical energy
(d) None of the above

ANSWER

EXPLANATION

4. The working of all electrical instruments depend upon :

(a) Magnetic effect of current
(b) Chemical effect of current
(c) Electromagnetic effect of current
(d) None of the above

ANSWER

EXPLANATION

5. Which of the following is used to measure current, voltage and resistance :

(a) Ammeter
(b) Voltmeter
(c) Avometer
(d) Galvanometer

ANSWER

EXPLANATION

1

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