A silver wire has a resistance of 215 \(\Omega\) at 27.5°C and a resistance of 270 \(\Omega\) at 100°C. Then the temperature coefficient of the resistivity of silver will be ……
Vs/Am is the unit of which physical quantity?
Calculate the current in the circuit using Ohm's Law. Given that the voltage across the resistor is V=10 V and the resistance is R = 4
A square loop of side 10 cm and resistance 0.5 \(\Omega\) is placed vertically in the east-west plane. A uniform magnetic field of 0.10 T is set across the plane in the northeast direction. The magnetic field decreases to zero at 0.70 s at a steady rate. Then the magnitude of the induced current during this time interval will be
A solenoid has a core of a material with a relative permeability of 400. The solenoid windings are insulated from the core and carry a current of 2A. If the number of turns is 1000 per meter, then the value of magnetic intensity will be