Question

name a device that is used to measure
1) current
2)potential difference

Answer 1

Ammeter is a device to measure current
Voltmeter is a device to measure potential difference.
I hope u will find it useful
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Answer 2

Answer:
current measuring device - ammeter
Potential difference measuring device+device- voltmeter
Explanation:
•Ammeter- It is an instrument used for measuring direct or alternating current.
Electric current measures in amperes
•Can measure wide range of current values.
•Voltmeter- It is an instrument used for measuring electric potential difference between two points of electric circuit.
• voltmeter measures potential difference in volts