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JAMB Physics Past Questions & Answers - Page 132

656.

In the circuit Shown above, calculate the effective capacitance between X and Y

A.

3/4µF

B.

$2 \frac{10}{13} µF$

C.

12µF

D.

$4 \frac{12}{13} µF$

E.

13µF

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

657.

A short bar magnet is placed in earth's magnetic field, as shown above, which of the points II and III are/is possible positions of a neutral point?

A.

I only

B.

II only

C.

III only

D.

I and II

E.

I,II and III

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

658.

A force varying linearly with the distance acts on a body as shown above, The work done on the body by the force during the first 10m of motion is

A.

100J

B.

150J

C.

200J

D.

300J

E.

600J

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

659.

What is the resistance of the circuit shown above

A.

4Ω

B.

11Ω

C.

19/5Ω

D.

17/4Ω

E.

8Ω

View answer & explanation

Correct answer is E

from the diagram, 2ohms and 2ohms are parallel, then total resistance = 1ohms

1ohms, 3ohms and the 4ohms are in series

then total resistance = 1 + 3 + 4 = 8ohms.

660.

The diagram above shows three circuits, the internal resistances of the batteries are negligible. which of the currents is the largest

A.

I₁

B.

I₂

C.

I₃

D.

I₄

E.

I₅

View answer & explanation

Correct answer is E

No explanation has been provided for this answer.

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