Question:
An \(AC\) supply gives 30 Vrms which is fed on a pure resistance of \(10 \,ohm\). The power dissipated:
An \(AC\) supply gives 30 Vrms which is fed on a pure resistance of \(10 \,ohm\). The power dissipated:
Updated On: Aug 7, 2023
90 watt
- 45 watt
- 90 : 2 watt
- 180 watt
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The Correct Option is A
Solution and Explanation
$P=\frac{V^{2}}{R}=\frac{(30)^{2}}{10}=90$ watt
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Concepts Used:
AC Voltage
When voltage changes its direction after every half cycle is known as alternating voltage. The current flows in the circuit at that time are known as alternating current. The alternating current(AC) follows the sine function which changes its polarity concerning time. Most of the electrical devices are operating on the ac voltage.
