If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
219 and 87
84 and 223
223 and 87
219 and 81
Correct answer is A
23592U → 4(42α) + 3(0−1e) + bay
a + (4 + 2) + (3x - 1) = 92 ⇒ a = 87
b + (4 x 4) + (3 x 0) = 235 ⇒ b = 219
baY = 21987Y
If two parallel conductors carry currents flowing in the same direction, the conducts will
attract each other
repel each other
both move in the same direction
have no effect on each other
Correct answer is A
No explanation has been provided for this answer.
Which of the following are found in the receiver but not in the microphone of a telephone handset?
i. Diaphragm.
ii. soft iron pole pieces.
iii. permanent magnet.
iv.carbon blocks
i and ii
i and iv
ii and iii
iii and iv
Correct answer is B
No explanation has been provided for this answer.
4 : 5
5 : 4
16 : 25
25 : 16
Correct answer is B
P1 = V21R1 and P2 = V22R2
P1R1 = P2R2
4P1 = 5P2
p1p2 = 54
= 5 : 4
A capacitor 8μF is charged to a potential difference of 100V. The energy stored by the capacitor is
1.0 x 104J
8.0 x 10J
1.25 x 10J
4.0 x 10-2J
Correct answer is D
Energy = 12CV2
= 12 x 8 x 10-6 x (100)2