An ammeter connected to a circuit with a nickel wire with a resistance of 2.5 ohms shows a force of 1.2 A.
| July 3, 2021 | education
An ammeter connected to a circuit with a nickel wire with a resistance of 2.5 ohms shows a force of 1.2 A. What voltage will a voltmeter connected to the ends of the nickel wire show?
R = 2.5 ohms.
I = 1.2 A.
U -?
According to Ohm’s law for a section of the circuit, the voltage at the ends of the nickel wire U is equal to the product of the current in the wire and the resistance of the wire: U = I * R.
An ammeter is a device that will show the current in the conductor I = 1.2 A.
U = 1.2 A * 2.5 Ohm = 3 V.
Answer: the voltmeter will show the voltage at the ends of the nickel wire U = 3 V.
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