What is the inductance of a coil in which the average emf induced is 21V when the current in the coils increases from 3A to 10A in 2 s?
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Q: What is the inductance of a coil in which the average emf induced is 21V when the current in the…
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Q: 4.30 32 3. In the circuit the emf ɛ = 21.3 volts and the inductance L= 150 mH. What will be the…
A: emf (E) = 21.3 volts L = 150 mH = 0.15 H t = 15.5 ms = 0.0155 s
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- A coil has 2.55-Ω resistance and 121-mH inductance. If the current is 3.00 A and is increasing at a rate of 3.80 A/s , what is the potential difference across the coil at this moment?In the given circuit an inductor of L = 6.20-mH and a resistor of R = 12.4-2 resistor are connected in series with a dc battery of E = 3.90-V. E ll R L S What is the voltage across the resistor immediately after the switch is closed?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 12 mV, what is the selfinductanceof the coil?
- A loop of wire has a self-inductance of 5.5 mH. You pass a current of 9.0 Amps though the loop, and then drop the current to 0 at a contastant rate over 3.5 seconds. What is the EMF generated?The self-inductance of the circuit in the figure below is 9.20 10-8 H. Find the back emf when the current is increasing at the rate of 1.83 107 A/s.Two resistors of resistance R1and R2 are placed in series across a battery with voltage V, such that a current I=V/(R1+R2) flows around the circuit. If a coil with inductance L is then placed inparallel withR1, what is the new currentIa long time after the coil has been added? Give your final answer.
- The current in a coil decreases from 9.0 A to 5.5 A in 0.30 s. If the average emf induced in the coil is 25 mV, what is the self-inductance of the coil?What is the inductance of a coil in which the average emf induced is 20.0 mV when the current in the coil is increased from 3.50 A to 7.70 A in 0.330 s?