- AAmphere
- BOhm
- CVolt
- DWeber
Explanation:
Inductive reactance or capacitive reactance are the impedance of an AC circuit which has the units of ohms.
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Four wires each of length 2.0 metres are bent into four loops P, Q, R and S and then suspended into uniform magnetic field. Same current is passed in each loop. Which statement is correct

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(a) Couple on loop P will be the highest |
(b) Couple on loop Q will be the highest |
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(c) Couple on loop R will be the highest |
(d) Couple on loop S will be the highest |
The area of each plate of a parallel plate capacitor is and the distance between the plates is 1mm. It is filled with mica of dielectric 6. The radius of the equivalent capacity of the sphere will be
|
(a) 47.7 m |
(b) 4.77 m |
(c) 477 m |
(d) None of the above |
An electric heater of resistance 6 ohm is run for 10 minutes on a 120 volt line. The energy liberated in this period of time is
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(a) 7.2 |
(b) 14.4 |
(c) 43.2 |
(d) 28.8 |
An electron (charge q coulomb) enters a magnetic field of H
with a velocity of vm/s in the same direction as that of the field the force on the electron is
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(a) Hqv Newton’s in the direction of the magnetic field |
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(b) Hqv dynes in the direction of the magnetic field |
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(c) Hqv Newton’s at right angles to the direction of the magnetic field |
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(d) Zero |
A current of 16 ampere flows through molten NaCl for 10 minute. The amount of metallic sodium that appears at the negative electrode would be
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(a) 0.23 gm |
(b) 1.15 gm |
(c) 2.3 gm |
(d) 11.5 gm |