Two similar coils of radius R are lying concentrically with their planes at right angles to each other. the currents flowing in them are l and 2l, respectively. The resultant magnetic field in induction at the centre will be

Question:

Options :

(a)√5μ0I/2R
(b) 3μ0I/2R
(c) μ0I/2R
(d) μ0I/R

Answer :

(a)√5μ0I/2R

Answer Steps :

step 1:

step 2:

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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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