In an electric circuit; an inductor of inductance 0.5 H and resistance 50Ω is connected to an alternating current source of frequency 60 Hz. Calculate the impedance of the circuit.
A. 50.0Ω B. 450.5 Ω C. 195.0 Ω D. 1950.1 Ω Correct Answer: Option C = 195.0 Ω
In the hydraulic press; the force F applied is related to the diameter d of the cylinder by?
A. F α d2 B. F α d C. F α d−1 D. F α d−2 Correct Answer: Option A = F α d2
Which of the following statements about photoelectrons is correct?
A. A faint green light produces photoelectrons with less kinetic energy than a bright red light B. A red light releases a smaller number of electrons than a green light C. A faint green light produces photoelectrons with greater kinetic energy than a bright red light...
An electron of mass m and charge e moves in a circular path in a magnetic field of flux density B. How long does it take to complete one orbit?
A. 2me/Bπ B. 2B/meπ C. 2πm/Be D. Be/2πm Correct Answer: Option C = 2πm/Be Explanation Motion of charged particles in Magnetic field qvb = MV2/r where q = e Introducing Period (T) as time taken to complete one orbit = 2π/Mqe...
The temperature of an object is raised by 120°C. The resulting increase in its absolute temperature is?
A. 50K B. 120 K C. 200K D. 393K Correct Answer: Option B = 120 K Both the scales are related as a unit for a unit. One unit increase in the Kelvin scale is the same as a one-degree increase in the Celsius scale. The only difference between these two scales is the zero...Products
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