For the following questions answer them individually
The energy stored in the magnetic field in a solenoid of length 30cm and diameter 3 cm wound with 1000 turns of wire & carrying a current of 10A is
In a four branch parallel circuit, 50mA current flows in each branch. If one of the branches opens, the current in other branches
Characteristic impedance of a quarter wave transformer connected in between a load of 100 ohm and a transmission line of characteristic impedance 225 ohms is
A transverse electromagnetic wave with circular polarization is received by a dipole antenna due to polarization mismatch. The power transfer efficiency from the waveto the antenna is reduced to about