A. Force and time
B. Force and velocity
C. Force and speed
D. None of these
Submitted by: Muhammad Hassan
Power = F . v
Related Mcqs:
- The magnitude of the cross product is equal to the dot product between them. The angle between the two vectors is________________?
A. 30°
B. 45°
C. 60°
D. 180° - The dot product of force and velocity is__________________?
A. power
B. work
C. impulse
D. torque - Which one of the following physical quantities does not have the dimensions of force per unit area ?
A. Stress
B. Strain
C. Youngs modulus
D. Pressure - The number of categories in which physical quantities are divided is_____________?
A. 1
B. 2
C. 3
D. 4 - Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f ?
A. 40 W
B. 90W
C. 100W
D. 120W - The average power and instantaneous power become equal if work is done at __________________?
A. any rate
B. at variable rate
C. at uniform rate
D. at high rate - The dimension of power is_______________?
A. [ML2T-3]
B. [ML2T-2]
C. [ML2T3]
D. none of these - The maximum safe limit dose for persons working in a nuclear power station is ________________?
A. 1 rem per week
B. 5 rem per week
C. 4 rem per week
D. 3 rem per week - A transmitting station emits radio waves of wavelength λ at power P. If h is Planck’s constant & c the speed of light what is the rate of emission of photons ?
A. λ
B. Speed of sound
C. Speed of lightB.
D. h - Errors in the transmission of power through optic fiber can be minimized by using a______________?
A. Multimode index fiber
B. Graded index fiber
C. Single mode step index fiber
D. Copper wire
