If the area of a coil with inductance L, is increased from 100mm2 to 200mm2 then its inductance value becomes:
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If the area of a coil with inductance L, is increased from 100mm2 to 200mm2 then its inductance value becomes:
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- Assume that the current flow through the resistor, IR, is 15 A; the current flow through the inductor, IL is 36 A; and the circuit has an apparent power of 10,803 VA. The frequency of the AC voltage is 60 Hz. ET ER EL IT IR15A IL36A Z R XL VA10,803 P VARSL PF LAssume that the voltage drop across the resistor, ER, is 78 V, that the voltage drop across the inductor, EL, is 104 V, and the circuit has a total impedance, Z, of 20 . The frequency of the AC voltage is 60 Hz. ETITZ20VAPFER78VIRRPEL104VILXLVARsLLAssume that the voltage drop across the resistor, ER, is 78 V; the voltage drop across the capacitor, EC, is 104 V; and the circuit has a total impedance, Z, of 20 . The frequency of the AC voltage is 60 Hz. Find the missing values. ET ER78V EC104V IT IR IC Z20 R XC VA P VARSC PF C
- Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 - Hz power line. An ammeter indicates a circuit current of 8.6 amperes. How much current is flowing through the 40F capacitor?Inductive Circuits Fill in all the missing values. Refer to the following formulas: XL=2fLL=XL2ff=XL2L Inductance (H) Frequency (Hz) Inductive Reactance ( ) 1.2 60 0.085 213.628 1000 4712.389 0.65 600 3.6 678.584 25 411.459 0.5 60 0.85 6408.849 20 201.062 0.45 400 4.8 2412.743 1000 40.841a coil with a resistance of 25 Ω and an inductance of 75 mH is available, if a capacitor of unknown capacitance is connected in series with this coil it is observed that the current in the circuit oscillates with a frequency of 25.4 Hz. Determine the value of the added capacitance. Response in mF.
- A coil having a 240V source has a current of 10.5 A when the frequency is set to 60 Hz. When the frequency is changed to 30 Hz, the resulting current is now 14.3 A. Find the inductance, L, of the coil (in mH).A coil with a self-inductance of 16 mH and a resistance of 6 Ω is connected to an AC source whose frequency can be varied. At what frequency will the voltage across the coil lead the current through the coil by 45°?Find the impedance theoretically of a wire if it carries the frequency 10 kHz have a voltage is 8v, the current is 2mA, resistance is 12 kΩ , inductance 27 mH and capacitance 0.2 µf
- A coil has a mean diameter of 2 cm having 60 turns is placed co-axially at the center of a solenoid 50 cm long wound with 2600 turns and carrying a current of 3 A. Determine the mutual inductance of the arrangement.A coil of 1000 turns is uniformly wound on a ring of non-magnetic material, the mean diameter is 20cm. The cross-sectional area of the coil is 4 cm^2. Determine the self-inductance of the coil.A coil of 20 ohms resistance has an inductance of 0.2 H and is connected in parallel with a 100 microfarad capacitor. Calculate the frequency at which the circuit will act as a non inductive resistance of R ohms. Find also the value of R.