When an inductor coil is connected to an ideal battery of emf 10 V
A Choke coil is needed to operate an arc lamp at 160V (rms) and 50Hz. The lamp has an effective resistnce of 5Ω when running at 10A(rms). Calculate the inductance of the choke coil. If the same arc lamp is to be operated on 160V(DC), what additional resistance is required ? Compare the power loses in both cases.
08
Sep
A Choke coil is needed to operate an arc lamp at 160V (rms) and 50Hz. The lamp has an effective resistnce of 5Ω when running at 10A(rms). Calculate the inductance of the choke coil. If the same arc lamp is to be operated on 160V(DC), what additional resistance is required ? Compare the power loses [...]
A bulb is rated at 100 V, 100 W. It can be treated as a resistor. Find out the inductance of an inductor (called choke coil) that should be connected in series with the bulb at its rated power with the help of an ac source of 200 V and 50 Hz.
08
Sep
A bulb is rated at 100 V, 100 W. It can be treated as a resistor. Find out the inductance of an inductor (called choke coil) that should be connected in series with the bulb at its rated power with the help of an ac source of 200 V and 50 Hz. A bulb is [...]
When an inductor coil is connected to an ideal battery of emf 10 V, a constant current 2.5 A flows. When the same inductor coil is connected to an ac source of 10 V and 50 Hz then the current is 2 A. Find out the indutance of the coil.
08
Sep
When an inductor coil is connected to an ideal battery of emf 10 V, a constant current 2.5 A flows. When the same inductor coil is connected to an ac source of 10 V and 50 Hz then the current is 2 A. Find out the indutance of the coil. a constant current 2.5 A [...]