Electronics. Test 3 – Online Maritime Tests

This circuit consists of a voltage source V, a change-over switch S, a resistor R and an inductor L. The voltage/time figures 1 to 4 show possible changes in the voltage V(L) in case the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?

Figure 1
Figure 4
Figure 3
Figure 2

The circuit consists of two inductors, L(1) = 6 H and L(2) = 12H, connected in parallel. Calculate the equivalent L(S) of the two inductors.

L(S) = 18 H
L(S) = 4 H
L(S) = 0,5 H
L(S) = 1,5 H

This circuit consists of a voltage source V, a change-over switch S, a resistor R and a capacitor C. The voltage/time figures 1 to 4 show possible changes in the voltage V(C) in case the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?

Figure 2
Figure 3
Figure 1
Figure 4

This circuit consists of a current source I, a change-over switch S, a resistor R and an inductor L. The voltage/time figures 1 to 4 show possible changes through L if the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?

Figure 2
Figure 1
Figure 3
Figure 4

This circuit consists of a current source I, a change-over switch S, a resistor R and a capacitor C. The current/time figures 1 to 4 show possible changes in the current I in case the switch S is suddenly shifted from position 1 to 2 at time t= 0. Only one of the diagrams is correct. Which?

Figure C
Figure B
Figure A
Figure D

This circuit consists of two resistances, R1 = 6 ohm and R2 = 12 ohm , connected in series. Calculate the equivalent resistance R(S) of the two resistances.

R(S) =1,5 ohm
R(S) = 2 ohm
R(S) =18 ohm
R(S) = 4 ohm

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