1. Specific resistance of a conductor depends upon
2. Two coils N1 and N2 turns are would concentrically on a straight cylindrical core of radius r and permeability µ. The windings have length \[{l_1}\] and \[{l_2}\] respectively as shown in figure.
The mutual inductance will be
1. Proportional to N1, N2
2. Proportional to µ
3. Inversely proportional to \[{l_1}\]
4. Inversely proportional to r2
Which of these statements are correct?
The mutual inductance will be
1. Proportional to N1, N2
2. Proportional to µ
3. Inversely proportional to \[{l_1}\]
4. Inversely proportional to r2
Which of these statements are correct?
3. Given Is = 10, Vs = 10, the current I in the 3 ohm resistor is given by
4. In the given circuit, the switch moves from position a to position b at t = 0. The expression of i (t) for t > 0 is given by:
5. Consider the RLC circuit shown below. At a certain frequency f0 the circuits behaves like a purely resistive circuits. The equivalent resistance of the parallel combination at that particular frequency f0 is
6. A battery is connected to a resistance causing a current of 0.5 A in the circuit. The current drops to 0.4 A when an additional resistance of 5 Ω is connected in series. The current will drop to 0.2 A when the resistance is further increased by
7. With usual notation a two port resistive network satisfied the condition A = D = $$\frac{3}{2}$$B = $$\frac{4}{3}$$C
The Z11 of the network is
The Z11 of the network is
8. Match List-I with List-II and select the correct answer using the options given below:
List-I
List-II
a. $$\frac{{{{\text{s}}^2} - {\text{s}} + 1}}{{{{\text{s}}^2} + {\text{s}} + 1}}$$
1. RL admittance
b. $$\frac{{{{\text{s}}^2} + {\text{s}} + 1}}{{{{\text{s}}^2} - {\text{s}} + 1}}$$
2. RL impedance
c. $$\frac{{{{\text{s}}^2} + 4{\text{s}} + 3}}{{{{\text{s}}^2} + 6{\text{s}} + 8}}$$
3. Unstable
4. Non- minimum phase
| List-I | List-II |
| a. $$\frac{{{{\text{s}}^2} - {\text{s}} + 1}}{{{{\text{s}}^2} + {\text{s}} + 1}}$$ | 1. RL admittance |
| b. $$\frac{{{{\text{s}}^2} + {\text{s}} + 1}}{{{{\text{s}}^2} - {\text{s}} + 1}}$$ | 2. RL impedance |
| c. $$\frac{{{{\text{s}}^2} + 4{\text{s}} + 3}}{{{{\text{s}}^2} + 6{\text{s}} + 8}}$$ | 3. Unstable |
| 4. Non- minimum phase |
9. What is the unit of sheet resistivity?
10. The effective inductance of two coils with self inductances L1, L2 and mutual inductance M (as connected shown in figure) will be:
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