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3 years ago

12

If in the circuit shown in figure below, the reading on the voltmeter is 5 V and the reading on the ammeter is 25 mA, the resist

ance of resistor R is:

1 answer:

tatuchka [14]3 years ago

4 0

Voltage=V=5V
Current=I=25mA=25×10^-3A
Resistance be R

Apply ohms law

$\\ \rm\hookrightarrow R=\dfrac{V}{I}$

$\\ \rm\hookrightarrow R=\dfrac{5}{25\times 10^{-3}}$

$\\ \rm\hookrightarrow R=0.2\times 10^{-3}$

$\\ \rm\hookrightarrow R=0.0002\Omega$

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