- AKirchhoff’s Law
- BNewton’s Law
- CCoulomb’s Law
- DStephan’s Law
Explanation:
Kirchhoff’s Law is used to analyze circuits. This law is important because they represent connections of a circuit. Kirchhoff’s Law provide the constraints that let us find the current flowing and voltage across every circuit element.
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When light wave suffers reflection at the interface from air to glass, the change in phase of the reflected wave is equal to
| (a) 0 |
(b) |
(c) |
(d) 2 |
A current of 1 ampere is passed through a straight wire of length 2.0 metres. The magnetic field at a point in air at a distance of 3 metres from either end of wire and lying on the axis of wire will be
|
(a) |
(b) |
(c) |
(d) Zero |
The plate current in a triode is given by
where Ip, Vp and Vg are the values of plate current, plate voltage and grid voltage, respectively. What are the triode parameters m, rp and gm for the operating point at
and
?
|
(a) 10, 16.7 kW, 0.6 m mho |
(b) 15, 16.7 kW, 0.06 m mho |
|
(c) 20, 6 kW, 16.7 m mho |
(d) None of these |
Maxwell’s equations describe the fundamental laws of
| (a) Electricity only | (b) Magnetism only | (c) Mechanics only | (d) Both (a) and (b) |
If what is the temperature of inversion
|
(a) - |
(b) + |
(c) - |
(d) + |