ABCD is a square where each side is a un...

ABCD is a square where each side is a uniform wire of resistance `1Omega.` A point E lies on CD such that if a uniform wire of resistance `1Omega` is connected across AE and constant potential difference is applied across A and C, then B and E are equipotential. Then,

`(CE)/(ED)=1`

`(CE)/(ED)=2`

`(CE)/(ED)=(1)/(sqrt(2))`

`(CE)/(ED)=sqrt(2)`

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A coil of wire of resistance 50 Omega is embedded in a block of ice. If a potential difference of 210 V is applied across the coil, the amount of ice melted per second will be

`4.12 gm`

`4.12 kg`

`3.68 kg`

`2.625 gm`

`5 Omega`

`15 Omega`

`7.2 Omega`

`30 Omega`

`3Omega`

`2 Omega`

`2.5Omega`

`6Omega`