155409 A transformer having efficiency of $90 \%$ is working on $200 \mathrm{~V}$ and $3 \mathrm{~kW}$ power supply. If the current in the secondary coil is $6 \mathrm{~A}$ the voltage across the secondary coil and the current in the primary coil respectively are-

155411 The number of turns in the coil of an A.C. generator are 100 and its cross-sectional area is $2.5 \mathrm{~m}^2$. The coil is revolving in a uniform magnetic field of strength $0.3 \mathrm{~T}$ with the uniform angular velocity of $60 \mathrm{rad} / \mathrm{s}$. The value of maximum value produced is $\qquad$ $\mathrm{kV}$.

155412 A transformer of efficiency $90 \%$ has turns ratio $1: 10$. If the voltage across the primary is $220 \mathrm{~V}$ and current in the primary is $0.5 \mathrm{~A}$, then the current in secondary is

155410 Assertion: A laminated core is used in transformers to increase eddy currents.
Reason: The efficiency of a transformer increases with increase in eddy currents.

155415 The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is 10 . If the voltage across the primary is $220 \mathrm{~V}$, what is the voltage across the secondary?

155409 A transformer having efficiency of $90 \%$ is working on $200 \mathrm{~V}$ and $3 \mathrm{~kW}$ power supply. If the current in the secondary coil is $6 \mathrm{~A}$ the voltage across the secondary coil and the current in the primary coil respectively are-

155411 The number of turns in the coil of an A.C. generator are 100 and its cross-sectional area is $2.5 \mathrm{~m}^2$. The coil is revolving in a uniform magnetic field of strength $0.3 \mathrm{~T}$ with the uniform angular velocity of $60 \mathrm{rad} / \mathrm{s}$. The value of maximum value produced is $\qquad$ $\mathrm{kV}$.

155412 A transformer of efficiency $90 \%$ has turns ratio $1: 10$. If the voltage across the primary is $220 \mathrm{~V}$ and current in the primary is $0.5 \mathrm{~A}$, then the current in secondary is

155410 Assertion: A laminated core is used in transformers to increase eddy currents.
Reason: The efficiency of a transformer increases with increase in eddy currents.

155415 The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is 10 . If the voltage across the primary is $220 \mathrm{~V}$, what is the voltage across the secondary?

155409 A transformer having efficiency of $90 \%$ is working on $200 \mathrm{~V}$ and $3 \mathrm{~kW}$ power supply. If the current in the secondary coil is $6 \mathrm{~A}$ the voltage across the secondary coil and the current in the primary coil respectively are-

155411 The number of turns in the coil of an A.C. generator are 100 and its cross-sectional area is $2.5 \mathrm{~m}^2$. The coil is revolving in a uniform magnetic field of strength $0.3 \mathrm{~T}$ with the uniform angular velocity of $60 \mathrm{rad} / \mathrm{s}$. The value of maximum value produced is $\qquad$ $\mathrm{kV}$.

155412 A transformer of efficiency $90 \%$ has turns ratio $1: 10$. If the voltage across the primary is $220 \mathrm{~V}$ and current in the primary is $0.5 \mathrm{~A}$, then the current in secondary is

155410 Assertion: A laminated core is used in transformers to increase eddy currents.
Reason: The efficiency of a transformer increases with increase in eddy currents.

155415 The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is 10 . If the voltage across the primary is $220 \mathrm{~V}$, what is the voltage across the secondary?

155409 A transformer having efficiency of $90 \%$ is working on $200 \mathrm{~V}$ and $3 \mathrm{~kW}$ power supply. If the current in the secondary coil is $6 \mathrm{~A}$ the voltage across the secondary coil and the current in the primary coil respectively are-

155411 The number of turns in the coil of an A.C. generator are 100 and its cross-sectional area is $2.5 \mathrm{~m}^2$. The coil is revolving in a uniform magnetic field of strength $0.3 \mathrm{~T}$ with the uniform angular velocity of $60 \mathrm{rad} / \mathrm{s}$. The value of maximum value produced is $\qquad$ $\mathrm{kV}$.

155412 A transformer of efficiency $90 \%$ has turns ratio $1: 10$. If the voltage across the primary is $220 \mathrm{~V}$ and current in the primary is $0.5 \mathrm{~A}$, then the current in secondary is

155410 Assertion: A laminated core is used in transformers to increase eddy currents.
Reason: The efficiency of a transformer increases with increase in eddy currents.

155415 The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is 10 . If the voltage across the primary is $220 \mathrm{~V}$, what is the voltage across the secondary?

155409 A transformer having efficiency of $90 \%$ is working on $200 \mathrm{~V}$ and $3 \mathrm{~kW}$ power supply. If the current in the secondary coil is $6 \mathrm{~A}$ the voltage across the secondary coil and the current in the primary coil respectively are-

155411 The number of turns in the coil of an A.C. generator are 100 and its cross-sectional area is $2.5 \mathrm{~m}^2$. The coil is revolving in a uniform magnetic field of strength $0.3 \mathrm{~T}$ with the uniform angular velocity of $60 \mathrm{rad} / \mathrm{s}$. The value of maximum value produced is $\qquad$ $\mathrm{kV}$.

155412 A transformer of efficiency $90 \%$ has turns ratio $1: 10$. If the voltage across the primary is $220 \mathrm{~V}$ and current in the primary is $0.5 \mathrm{~A}$, then the current in secondary is

155410 Assertion: A laminated core is used in transformers to increase eddy currents.
Reason: The efficiency of a transformer increases with increase in eddy currents.

155415 The number of turns in primary coil of a transformer is 20 and the number of turns in the secondary is 10 . If the voltage across the primary is $220 \mathrm{~V}$, what is the voltage across the secondary?