Two resistors whose value are in ratio 2 : 1 are connected in parallel with one cell. Then ratio of power dissipated is
|
(a) 2 : 1 |
(b) 4 : 1 |
(c) 1 : 2 |
(d) 1 : 1 |
(c) 1 : 2
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A certain charge liberates 0.8 gm of 
. The same charge will liberate how many gm of silver
|
(a) 108 gm |
(b) 10.8 gm |
(c) 0.8 gm |
(d) |
Which of the following statements concerning the depletion zone of an unbiased PN junction is (are) true
|
(a) The width of the zone is independent of the densities of the dopants (impurities) |
|
(b) The width of the zone is dependent on the densities of the dopants |
|
(c) The electric field in the zone is produced by the ionized dopant atoms |
|
(d) b, c |
A circular coil having N turns is made from a wire of length L meter. If a current I ampere is passed through it and is placed in a magnetic field of B Tesla, the maximum torque on it is
|
(a) Directly proportional to N |
(b) Inversely proportional to N |
|
(c) Inversely proportional to |
(d) Independent of N |
