Explanation:
potential energy in magnetic feild is given by U = μB sinθ Two current carrying loops of same area but of different materials have same current flowing in them in anti-clockwise direction.if a magnetic field is applied in upward direction then potential energy of loop 1 and loop 2 will always be Equal.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
The mass equivalent of 931 MeV energy is
|
(a) 1.66 |
(b) 6.02 |
(c) 1.66 |
(d) 6.02 |
Two capacitors of capacitances 3 μF and 6 μF are charged to a potential of 12 V each. They are now connected to each other, with the positive plate of each joined to the negative plate of the other. The potential difference across each will be
|
(a) 6 volt |
(b) 4 volt |
(c) 3 volt |
(d) Zero |
What is the current (i) in the circuit as shown in figure
|
(a) 2 A |
(b) 1.2 A |
(c) 1 A |
(d) 0.5 A |
The value of angle of dip is zero at the magnetic equator because on it
|
(a) V and H are equal |
(b) The value of V and H is zero |
|
(c) The value of V is zero |
(d) The value of H is zero |
Two waves have their amplitudes in the ratio 1 : 9. The maximum and minimum intensities when they interfere are in the ratio
|
(a) |
(b) |
(c) |
(d) |
In the figure given the value of X resistance will be, when the p.d. between B and D is zero
|
(a) 4 ohm |
(b) 6 ohm |
(c) 8 ohm |
(d) 9 ohm |
