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.
An example of a scalar quantity is
velocity
weight
electric charge
acceleration due to gravity
momentum
Correct answer is C
No explanation has been provided for this answer.
0.5\(\Omega\)
1\(\Omega\)
2\(\Omega\)
2.5\(\Omega\)
3\(\Omega\)
Correct answer is E
1 = \(\frac{E}{R + r}\)
\(\frac{2}{R + 1}\) = 0.5
0.5R = 2 - 0.5 = 1.5
R = \(\frac{1.5}{0.5}\)
= 3\(\Omega\)
Which of the following is NOT an effect that can be produced by an electric current?
heat
light
sound
motion
none of the above
Correct answer is E
No explanation has been provided for this answer.
i, ii and iii
i, ii and iv only
i and ii only
i and ii only
all four statements
Correct answer is B
No explanation has been provided for this answer.
conduction only
convection only
radiation only
non of these methods
Correct answer is C
No explanation has been provided for this answer.