Express which of the following set ups can be used to verify
ohm's law?

Options

A.
B.
C.
D.

Answer

A

Explanation

a. In Ohm's law, we check `V = IR` where I is the current flowing
through a resistor and V is the potential difference across
that resistor. Only option (a) fits the criteria. Remember that
ammeter is connected in series with resistance and voltmeter
in parallel with the resistance.
.