A current of 2 mA was passed through an unknown resistor which dissipated a power of 4.4 W. Dissipated power when an ideal power supply if 11V is connected across it is: |
|||

(a) |
11×10 |
(b) |
11×10 |

(c) |
11×10 |
(d) |
11×10 |

A current of 2 mA was passed through an unknown resistor which dissipated a power of 4.4 W. Dissipated power when an ideal power supply if 11V is connected across it is: |
|||

(a) |
11×10 |
(b) |
11×10 |

(c) |
11×10 |
(d) |
11×10 |

1 Answer

127 votes

P=I^{2}R

4.4=4×10^{−6}R

R=1.1×10^{6}

P^{1}^{ }= =×10^{−}^{6}=11×10^{−}^{5}W

127 votes

127