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Determine the current (in A) through a 60 cm long solenoid when the solenoid has 400 turns and the value of magnetic field at the centre of the solenoid is 6 mT ?
Determine the intensity of magnetization (in A/m) of a magnet when the pole strength of the magnet is 30 A-m and the pole of the magnet is 2 sq. m. ?
Determine the load resistance (in ohms) for a circuit when the maximum power transferred from source of 80 V to the load is 80 W ?
Determine the magnetic field intensity (in Amp-turns/m) of 5 metre long coil when the coil has 100 turns and carries a current of 0.6 A ?
Determine the reluctance (in Amp-turns/Wb) of a coil, when the flux through the coil is 25 Wb and the value of produced mml is 50 Amp-turns ?
Determine the self-inductance (in mH) of a 3 m long air-cored solenoid, when the coil has 300 turns and the diameter of the coil 12 cm ?
Determine the time-period (in ms) of a sinusoidal wave when the frequency of the wave is 60 Hz. ?
Determine the total power (in kW) consumed by a 3-phase delta connected system supplied by a line voltage of 240 V when the value of phase current is 20 A and the current lags the voltage by 60 degree ?
Determine the value of current (in A) that flows through a resistor of 9 ohms, when the potential difference between the ends of the resistor is 36 V ?
Device used to rectify farsightedness is
