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Standard XII

Physics

P-N Junction

Find the valu...

Question

Find the value of current through an inductance of $0.7 H$ and negligible resistance when connected to an ac source of $220 V$ and frequency $50 H z$ . Take $π = \frac{22}{7}$ .

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Solution

For pure inductive circuit, Current lag by $\frac{π}{2}$
inductive reactance $X_{L} = ω L = 2 π f L X_{L} = 2 \times \frac{22}{7} \times 0.7 \times 50 X_{L} = 220$

$C u r r e n t t h r o u g h i n d u c t o r i = \frac{V}{X_{L}} = \frac{220}{220} = 1 A m p s$

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Find the value of current through an inductance of 0.7H and negligible resistance when connected to an ac source of 220V and frequency 50Hz. Take π=227.

For pure inductive circuit, Current lag by π2inductive reactance XL=ωL=2πfLXL=2×227×0.7×50XL=220Current through inductor i=VXL=220220=1Amps

Find the value of current through an inductance of $0.7 H$ and negligible resistance when connected to an ac source of $220 V$ and frequency $50 H z$ . Take $π = \frac{22}{7}$ .

For pure inductive circuit, Current lag by $\frac{π}{2}$
inductive reactance $X_{L} = ω L = 2 π f L X_{L} = 2 \times \frac{22}{7} \times 0.7 \times 50 X_{L} = 220$

$C u r r e n t t h r o u g h i n d u c t o r i = \frac{V}{X_{L}} = \frac{220}{220} = 1 A m p s$