A particle A has a charge q and particle B has charge +4q with each of them having the mass m. When they are allowed to fall from rest through same potential difference the ratio of their speeds vA/vB will be

Question:

Options :

(a) 4:1
(b) 1:4
(c) 1:2
(d) 2:1

Answer :

Answer Steps :

step 1:

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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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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:

In an a. c. circuit the instantaneous current and e.m.f. are represented as: I = I0 sin(ωt – π/6) and E = E0 sin(ωt + π /3) respectively. The voltage leads the current by

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