Question

an LR circuit consist of a resistance of 50 ohm and coil of inductive reactance 120 ohm if the circuit is connected across 260 volt ac mains the current in circuit is
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Answer 1

Answer:

answer hai 126

Explanation:

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Answer 2

Given:

an LR circuit consist of a resistance of 50 ohm and coil of inductive reactance 120 ohm, the circuit is connected across 260 volt ac mains.

To find:

Current in the circuit.

Calculation:

Let impedance of circuit be Z ;

$\therefore \: Z = \sqrt{ {(120)}^{2} + {(50)}^{2} }$

$= > Z = \sqrt{ 14400 + 2500 }$

$= > Z = \sqrt{ 16900 }$

$= > Z = 130 \: ohm$

So, let current in circuit be I ;

$\therefore \: I = \dfrac{voltage}{Z}$

$= > \: I = \dfrac{260}{130}$

$= > \: I = 2 \: ampere$

So, final answer is:

$\boxed{ \bf{ \: current = 2 \: ampere}}$