154809 A short solenoid of length $4 \mathrm{~cm}$, radius $2 \mathrm{~cm}$ and 100 turn is placed inside and on the axis of a long solenoid of length $80 \mathrm{~cm}$ and 1500 turns. A current of $3 \mathrm{~A}$ flows through the short solenoid. The mutual inductance of two solenoids is

154810 If the self -inductance of 500 turns coil is $\mathbf{1 2 5}$ $\mathrm{mH}$, then the self inductance of similar coil of 800 turns is

154811 A resistor $30 \Omega$, inductor of reactance $10 \Omega$ and capacitor of reactance $10 \Omega$ are connected in series to an AC voltage source $\varepsilon=$ $300 \sqrt{2} \sin (\omega t)$. The current in the circuit is

154814 Find the inductance of a unit length of two parallel wires, each of radius a, whose centers are at distance d apart and carry equal currents in opposite directions. Neglect the flux within the wire.

154809 A short solenoid of length $4 \mathrm{~cm}$, radius $2 \mathrm{~cm}$ and 100 turn is placed inside and on the axis of a long solenoid of length $80 \mathrm{~cm}$ and 1500 turns. A current of $3 \mathrm{~A}$ flows through the short solenoid. The mutual inductance of two solenoids is

154810 If the self -inductance of 500 turns coil is $\mathbf{1 2 5}$ $\mathrm{mH}$, then the self inductance of similar coil of 800 turns is

154811 A resistor $30 \Omega$, inductor of reactance $10 \Omega$ and capacitor of reactance $10 \Omega$ are connected in series to an AC voltage source $\varepsilon=$ $300 \sqrt{2} \sin (\omega t)$. The current in the circuit is

154814 Find the inductance of a unit length of two parallel wires, each of radius a, whose centers are at distance d apart and carry equal currents in opposite directions. Neglect the flux within the wire.

154809 A short solenoid of length $4 \mathrm{~cm}$, radius $2 \mathrm{~cm}$ and 100 turn is placed inside and on the axis of a long solenoid of length $80 \mathrm{~cm}$ and 1500 turns. A current of $3 \mathrm{~A}$ flows through the short solenoid. The mutual inductance of two solenoids is

154810 If the self -inductance of 500 turns coil is $\mathbf{1 2 5}$ $\mathrm{mH}$, then the self inductance of similar coil of 800 turns is

154811 A resistor $30 \Omega$, inductor of reactance $10 \Omega$ and capacitor of reactance $10 \Omega$ are connected in series to an AC voltage source $\varepsilon=$ $300 \sqrt{2} \sin (\omega t)$. The current in the circuit is

154814 Find the inductance of a unit length of two parallel wires, each of radius a, whose centers are at distance d apart and carry equal currents in opposite directions. Neglect the flux within the wire.

154809 A short solenoid of length $4 \mathrm{~cm}$, radius $2 \mathrm{~cm}$ and 100 turn is placed inside and on the axis of a long solenoid of length $80 \mathrm{~cm}$ and 1500 turns. A current of $3 \mathrm{~A}$ flows through the short solenoid. The mutual inductance of two solenoids is

154810 If the self -inductance of 500 turns coil is $\mathbf{1 2 5}$ $\mathrm{mH}$, then the self inductance of similar coil of 800 turns is

154811 A resistor $30 \Omega$, inductor of reactance $10 \Omega$ and capacitor of reactance $10 \Omega$ are connected in series to an AC voltage source $\varepsilon=$ $300 \sqrt{2} \sin (\omega t)$. The current in the circuit is

154814 Find the inductance of a unit length of two parallel wires, each of radius a, whose centers are at distance d apart and carry equal currents in opposite directions. Neglect the flux within the wire.