Home
Class 12
PHYSICS
The resistance of an electrical toasterf...

The resistance of an electrical toasterf has a temeprature dependence given by `R(T)=R_0[(T-T_0)]` in its range of operation. At `T_0=300 K,R=100Omega and at T=500 K,R=120 Omega`. The toasterf is connected to a voltage source at 200 V and its temperature is raised at a con- stant rate from 300 to 500 K in 30 s. The total work done in raising the temperature is :

Promotional Banner

Similar Questions

Explore conceptually related problems

Resistance of a resistor at temperature t^@C is R_t =R_0 (1+alphat + betat^2) , where R_0 is the resistance at 0^@C . The temperature coefficient of resistance at temperature t^@C is

Resistance of a resistor at temperature t^@C is R_t =R_0 (1+alphat + betat^2) , where R_0 is the resistance at 0^@C . The temperature coeffcient of resistance at temperature t^@C is

What work has to be done isobarically on a mole of diatomic gas to increase its rms speed eta = 3 times from T_0 =300 K ?

Resistance of a wire at temperature t^(@)C is R=R_(0)(1+at+bt^(2)) Here, R_(0) is the temperature at 0^(@)C . Find the temperature coefficient of resistance at temperature t is

An LR circuit has L = 1.0 H R =20 Omega . It is connected across an emf of 2.0 V at t=0. Find di/dt at (a) t =100ms, (b) t =200 ms and (c ) t = 1.0 s.

An LR circuit has L = 1.0 H R =20 Omega . It is connected across an emf of 2.0 V at t=0 . Find di/dt at (a) t =100ms, (b) t =200 ms and (c )t = 1.0 s .

An LR circuit has L = 1.0 H R =20 Omega . It is connected across an emf of 2.0 V at t=0. Find di/dt at (a) t =100ms, (b) t =200 ms and (c ) t = 1.0 s.

The efficiency of a Carnot engine which operates between the two temperatures T_1=500K and T_2=300K is

The efficiency of a Carnot engine which operates between the two temperatures T_1=500K and T_2=300K is

The efficiency of a Carnot engine which operates between the two temperatures T_1=500K and T_2=300K is