Physics Questions and Answers
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.
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.
In the diagram above, which of the simple pendula will resonate with P when set into oscillation
T
U
R and T
Q and R
Correct answer is A
The pendulum that will resonate with P is T. being of the same length and therefore of the same frequency.
In the a.c circuit above, the current value is
0.58 A
3.00 A
4.00 A
6.67 A
Correct answer is C
Impedance Z =
√ R2 x X2
=
√ 302 x 402
∴Z =
√ 2500 = 50W
But current I = V/Z = 200/50 = 4.00 A
If current flows in the direction of the arrows in the solenoid above, the north pole is at
P
Y
X
Q
Correct answer is D
No explanation has been provided for this answer.
The correct position for a fuse in the diagram above is
between P and Q
Q
S
P
Correct answer is D
No explanation has been provided for this answer.
In the diagram above, the values of V1 and V2 are respectively
1V and 1/3V
1/3V and 1V
1/3V and 2/3V
1V and 2/3V
Correct answer is D
Effective resistance in the circuit
= 3 + 2 + 1 = 6Ω
Current through the I = E/(R+V)
∴I = 2/6
=> V1 = I x R1 2/6 x 3/1 = 1V
= V2 = I x R2 = 2/6 x 2/1 = 2/3V
∴ we have 1V and 2/3V