1,486.
Calculate the current in the 3Ω resistor shown in
the diagram above.
A.
3.0A
B.
4.0A
C.
4.3A
D.
12.0A
E.
39.0A
Correct answer is B
Total Resistance R = 1/R = 1/R1 + 1/R2 + 1/R3
R = 12/13Ω
V = IR = (12/13) x 13 = 12v
1 across 3Ω = V/R = 12/3 = 4A
1,487.
A.
7 x10-20N
B.
7 x 10-5N
C.
7 x10-2N
D.
7 x103N
E.
7x100N
Correct answer is C
F =
Gm1m2r2
= 7 x 10-11 x 106 x 1031m
= 7 x 10-2 1,490.
The eye defect illustrated by the diagram above is
A.
astigmatism
B.
long sightedness
C.
loss accommodation
D.
short sightedness
E.
colour blindness
Correct answer is B
No explanation has been provided for this answer.
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