Alternating Current
Trending Questions
Q.
The formula for Calculating Wattless Current
Q.
What Is HT Power Supply?
Q.
If the flux of magnetic induction through a coil of resistance R and having n turns changes from Φ1 to Φ2, then the magnitude of the charge that passes through the coil is
Φ2−Φ1R
nΦ2−Φ1R
Φ2−Φ1nR
nRΦ2−Φ1
Q. In a region of uniform magnetic induction B=10−2 tesla, a circular loop of radius 30 cm and resistance π2 ohm is rotated about an axis which is perpendicular to the direction of B and which forms a diameter of the loop. If the loop rotates at 200 rpm , the maximum amplitude of the alternating current induced in the loop is
- 4π2 mA
- 30 mA
- 6 mA
- 200 mA