How much power is produced if a voltage of $7 V$ is applied to a circuit with a resistance of $98 Omega$ ?

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Answer 1 · 2018-08-11T07:37:08

The power is $=0.5W$

The power is

$"Power (W) "="Voltage (V) " xx" Current (A)"$

$P=UI$

And

Ohm's Law is

$"Voltage (V)"= " Current (A) " xx " Resistance "( Omega)$

$U=RI$

The voltage is $U=7V$

The resistance is $R=98 Omega$

The current is

$I=U/R=7/98=1/14A$

The power is

$P=7xx1/14=1/2=0.5W$

How much power is produced if a voltage of 7 V7 V is applied to a circuit with a resistance of 98 Omega98 Omega?