KL2013

Photocells convert

Photocells convert Options (a) heat energy into electrical energy (b) light energy into mechanical energy (c) thermal energy into mechanical…

The drift speed of electrons in copper wire of diameter and length l is v.

The drift speed of electrons in copper wire of diameter and length l is v. If the potential difference across…

Two bulbs 60 W and 100 W designed for voltage 220 V are connected in series

Two bulbs 60 W and 100 W designed for voltage 220 V are connected in series across 220 V source.…

When alpha particles captures and electron, then it becomes a

When alpha particles captures and electron, then it becomes a Options (a) helium atom (b) hydrogen atom (c) helim ion…

The ratio of volumes of nuclei (assumed to be in spherical shape) with respective

The ratio of volumes of nuclei (assumed to be in spherical shape) with respective mass number 8 and 64 is…

If both the resistance and the inductance in an LR AC series circuit are doubled

If both the resistance and the inductance in an LR AC series circuit are doubled the new impedance will be…

A L-C-R circuit with L=1.00 mH, C=10μF and R=50Ω, is driven with 5 V AC voltage.

A L-C-R circuit with L=1.00 mH, C=10μF and R=50Ω, is driven with 5 V AC voltage. At resonance, the current…