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Q: From which device is the electric current measured?
  • A. Voltmeter
  • B. Ammeter
  • C. Ohmmeter
  • D. Wavemeter
Correct Answer: Option B - An ammeter is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amperes (a), hence the named Instruments are used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters. Hence- (i) Ammeter is connected in series to the circuit. (ii) It must have the following legitimate resistance. (iii) Ammeter Draws less power.
B. An ammeter is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amperes (a), hence the named Instruments are used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters. Hence- (i) Ammeter is connected in series to the circuit. (ii) It must have the following legitimate resistance. (iii) Ammeter Draws less power.

Explanations:

An ammeter is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amperes (a), hence the named Instruments are used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters. Hence- (i) Ammeter is connected in series to the circuit. (ii) It must have the following legitimate resistance. (iii) Ammeter Draws less power.