The time period of a freely suspended magnet is 4 seconds. If it is broken in length into two equal parts and one part is suspended in the same way, then its time period will be

Question:

Options :

(a) 4 sec
(b) 2 sec
(c) 0.5 sec
(d) 0.25 sec

Answer :

Ans ;-(b) 2 sec

Answer Steps :

Step 1:-

Step 2:-

Step 3:-

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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