Which of the given statements is true regarding ammeter and voltmeter? *
A. Ammeter is connected in series with the required device, Voltmeter in parallel
B. Both ammeter and voltmeter are connected in series with required device
C. The voltmeter is connected in series with the device, Ammeter in parallel
D. They can be connected in any way
Answers
Answer:
the first answer is correct (a)ammeter is connected in series with the required device, Votlmeter in parallel
Explanation:
An ammeter is connected in series with the circuit because the purpose of the ammeter is to measure the current through the circuit. Since the ammeter is a low impedance device, connecting it in parallel with the circuit would cause a short circuit and will damage the ammeter and the circuit.
Answer:
(A) Ammeter is connected in series with the required device, Voltmeter in parallel.
Explanation:
Ammeter:
The ammeter is a device used to measure the current in the circuit and has a low resistance hence is connected in series so that the same amount of current present in the circuit flows through the ammeter.
Connecting in parallel will cause a short circuit.
Voltmeter:
A voltmeter or galvanometer has high resistance and is a device to measure potential drop across any part of the circuit. A voltmeter is connected in parallel so that it does not draw more current due to the high resistance and does not have any effect on the effective resistance of the circuit.
An ammeter is connected in series and a voltmeter is connected in parallel with the required device.
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