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

1. Ammeter is used to measure :

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

Answer
Answer : (b)
Explanation
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2. Voltmeter is used to measure the :

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

Answer
Answer : (d)
Explanation
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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
Answer : (c)
Explanation
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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
Answer : (a)
Explanation
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5. Which of the following is used to measure current, voltage and resistance :

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

Answer
Answer : (c)
Explanation
No answer description available for this question. Let us discuss.
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