Related InterviewSolutions

• If a circuit made up of a resistance 1 `Omega` and inductance 0.01 H, an alternating emf of 200 voit at 50 Hz is connected, then find the phase difference between the current and the emf in the circuit.A. `tan^(-1)(pi)`B. `tan^(-1)((pi)/(2))`C. `tan^(-1)((pi)/(4))`D. `tan^(-1)((pi)/(3))`
• An Ac source of volatage V=100 sin `100pit` is connected to a resistor of ressistance 20` Omega`The rsm value of current through resistor isA. `10 A`B. `10/sqrt 2 A `C. `5/sqrt 2 A`D. non of these
• The time taken by the current to rise to 0.63 of its maximum value in a DC circuit containing inductance (L) and resistance ® depends onA. L onlyB. R onlyC. `L/R`D. LR
• The reactance of an inductor connected with DC voltage isA. zeroB. `infty`C. 1`Omega`D. None of these
• An Ac voltage is represented by e=220 sin `(100pi)` t volt and is applied over a resistance of 110 ohm. Calculate the heat produced in 7 min.A. `11xx10^(3)` calB. `22xx10^(3)` calC. `33xx10^(3)` calD. `25xx10^(3)` cal
• A current l=3+8 sin 100t is passing through a resistor of resistance 10 `Omega`.The effective value of current isA. `5 A`B. `10 A`C. `4sqrt2 A`D. 3sqrt2 A
• A metallic square loop ABCD is moving in its own plane with velocity v in a uniform magnetic field perpendicular to its plane as shown in the figure. An electric field is induced A. in AD,but not in BCB. in BC,but not in ADC. neither in AD nor in BCD. in both AD and BC
• An Ac source of volatage V=100 sin `100pit` is connected to a resistor of ressistance 20` Omega`The rsm value of current through resistor is ,total heat generated in one cycle isA. `sqrt2 J`B. 5 JC. `4sqrt2 J`D. zero
• An Ac source of volatage V=100 sin `100pit` is connected to a resistor of ressistance 20` Omega`The rsm value of current through resistor is total charge transferred through resistor in long time isA. zeroB. `(2l_(0))/(pi)`C. `(l_(0))/(25pi)`D. non of these
• An Ac source of volatage V=100 sin `100pit` is connected to a resistor of ressistance 20` Omega`The rsm value of current through resistor is ,total charge transferred in 1/100 second isA. `1/(10 pi) C`B. `1/(5 pi) C`C. zeroD. non of these