A conductor in (x-y) plane and having lenth 1m is moving with velocity V=(2i+3j+k)m/sec.Magnetic flux desity B=(i+2j)wb/m2.Potential difference at the end of the conductor is(Explain your answer) i)0 ii)4.88V iii)root6...

1)A sphere of radii 1m can attain a maximum potential of i)3*10^6V ii)30KV iii)1000V iv)3KV 2)Two coils having equal resistance but different inductance are connected in series.The time constant of...

But they gave answer for 1) 1:2 2) 500W 3) slightly more 50W 4) i

1) Two lamps of 200W,200V and 100W,220V are connected in series across 220V supply.The ratio of current through theem will be i) 1:2 ii)1:1 iii)2:1 iv)1:4 2)Two heaters,rated at 1000W,250V...