In the below circuit
Statement-1: The temperature dependence of resistance is usually given as R=R0(1+αΔT). The resistance of a wire changes from 100Ω→150Ω when its temperature is increased from 27^∘C to 227^∘C. This implies that α=2.5×10^−3/∘C. Statement 2: R=Ri(1+αΔT) is valid only when the change in the temperature ΔT is small and ΔR=(R−R0)
05
Dec
Statement-1: The temperature dependence of resistance is usually given as R=R0(1+αΔT). The resistance of a wire changes from 100Ω→150Ω when its temperature is increased from 27^∘C to 227^∘C. This implies that α=2.5×10^−3/∘C. Statement 2: R=Ri(1+αΔT) is valid only when the change in the temperature ΔT is small and ΔR=(R−R0) In the below circuit the current [...]
A rectangular loop has a sliding connector PQ of length l and resistance RΩ and it is moving with a speed v as shown. The set-up is placed in a uniform magnetic field going into the plane of the paper. The three currents I1, I2 and I are
05
Dec
A rectangular loop has a sliding connector PQ of length l and resistance RΩ and it is moving with a speed v as shown. The set-up is placed in a uniform magnetic field going into the plane of the paper. The three currents I1, I2 and I are In the below circuit the current [...]
The current in the primary circuit of a potentiometer is 0.2A. The specific resistance and cross section of the potentiometer wire are 4×10^−7 ohm metre and 8×10^−7 m^2 respectively. The potential gradient will be equal to :
05
Dec
The current in the primary circuit of a potentiometer is 0.2A. The specific resistance and cross section of the potentiometer wire are 4×10^−7 ohm metre and 8×10^−7 m^2 respectively. The potential gradient will be equal to : In the below circuit the current in each resistance is December 5, 2020 Category: Arihant Physics by D.C [...]
Resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied across it. If the percentage errors in the measurement of the current and the voltage difference are 3% each, then error in the value of resistance of the wire is
05
Dec
Resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied across it. If the percentage errors in the measurement of the current and the voltage difference are 3% each, then error in the value of resistance of the wire is In the below circuit the current [...]
In the below circuit, the current in each resistance is
05
Dec
In the below circuit, the current in each resistance is In the below circuit the current in each resistance is December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,