At a certain instant the current flowing through a 5.0-H inductor is 3.0 A. If the energy in the inductor at this instant is increasing at a rate of 3.0 J/s, how fast is the current changing?

Q: An inductor has a diameter of 6.0cm,20.0cm long and 500.0 turns . Compute the : a)self inductance…

A: a) The required self inductance is, L=μ0N2Al   =4π×10-75002π0.06220.20   =4.44 mH

Q: Suppose that a rectangular toroid has 1500 windings and a self-inductance of 0.04 H. If the height…

A: Given : Number of turns, N= 1500 Self Inductance, L =0.04 H Height , h = 0.08 m  Energy stored , U=…

Q: Two coils are placed near each other and they have a mutual inductance of 879.1 mH. If the current…

A: mutual inductance(M)=879.1 mH=879.1×10-3H  current i(t)=0.5e-1,625.3t to find: induced emf at…

Q: The time variation of the current in a 3H inductor is given by I=5+7t-7t^2, with I in amperes and t…

A:

Q: Suppose that a rectangular toroid has 2,000 windings and a self-inductance of 0.060 H. If the height…

A: The energy stored in an inductor is, U=12LI2

Q: At a certain instant the current flowing through a 5.8 H inductor is 3.1 A. The energy in the…

A: Given data The current flowing through the circuit is I = 3.1 A. The inductance of the inductor is…

Q: After being closed for a long time, the switch S in the circuit shown in the figure below is thrown…

A:

Q: The coil in an electromagnet has an inductance of 1.7 mH and carries a constant direct current of…

A: Given that,Inductance, L=1.7 mH=1.7×10-3HDirect current, I=5.6 AInduced emf, ε=7.3 V

Q: An inductor ued in c an inducatnce of 10 of 1892. It stores a magnetic potential W) is electrical…

A:

Q: A 12 H inductor carries a current of 2 A. At what rate must the current change to produce a 60V emf…

A:

Q: In the circuit, switch Sis opened at t= 0 after having been closed for a long time. At what time is…

A:

Q: A 6.0x10-6 F capacitor is charged so that there is a charge on each plate of magnitude 10.0 x10-6 C.…

A:

Q: The magniotude of the emf induced in an inductor is 1.5V when the current in the inductor is…

A:

Q: 3. A 12.0 V battery is connected in series with a 10.0 O resistor, an inductor and a switch. At time…

A:

Q: A 2.00-H inductor carries a steady current of 0.500 A. When the switch in the circuit is opened, the…

A:

Q: A dc motor with its rotor and field coils connected in series has an internalresistance of 2.00 Ω.…

A: Given: The internal resistance of the coils is r=2.00 Ω. The full load voltage of motor is V=120 V.…

Q: It has been proposed to use large inductors as energy storage devices. (a) How much electrical…

A: (a) electrical energy E=Pt=150 W24 h3600 s1 h=12.96×106 J≈13×106 J

Q: After being closed for a long time, the switch S in the circuit shown in the figure below is thrown…

A:

Q: A 24-V battery is connected in series with a resistor and an inductor, with R = 8.8 N and L = 2.0 H,…

A: Given, V = 24 V R = 8.8 ohms L = 2 H   The expression for current in Rl circuit is I=εR(1-e-tL)

Q: Two coils are placed near each other and they have a mutual inductance of 887.4 mH. If the current…

A:

Q: The current in an inductor decreases linearly from 2 mA to zero in 4 ms. Calculate to find the…

A: The initial value of the current is 2 mA. The final value of the current is 0. The time taken to…

Q: In the circuit shown in Fig. , switch S1 has beenclosed for a long enough time so that the current…

A: Given circuit:

Q: The induced emf of a dc machine running at 750 rpm is 220 V. The percentage increase in field flux…

A: Given that,Initially, Induced emf, E1=220 VoltSpeed of motor, N1=750 rpm.When, Emf, E2=250 VoltSpeed…

Q: The voltage across an inductor is proportional to the inductor and the derivative of the current…

A: As we know that,          Voltage across Inductor is given by :…

Q: An inductor carrying a current of 3.9 A stores 0.45 J of energy. What is the inductance ofthis…

A: To determine inductance of inductor, the expression is, U=12LI2

Q: A 10.00 μF capacitor C is initially charged to a voltage V of 10.00 (V). It is then connected in…

A:

Q: A 12.0-V battery is connected in series to a 25.0-Ohm resistor and a 5.00-H inductor. How much…

A: The energy stored in the inductor when the current is changing at the rate of 1.0 A/s. rate of…

Q: A 7.50 nF capacitor is charged to 12.0 V, then disconnectedfrom the power supply and connected in…

A: Given: The value of the capacitor is 7.50 nF.            The voltage is 12 V.             The time…

Q: It has been proposed to use large inductors as energy storage devices. (a) How much electrical…

A:

Q: The current in a coil drops from 3.5 A to 2.0 A in 0.50 s. Ifthe average emf induced in the coil is…

A: Writing the formula for induced emf: