Explore topic-wise MCQs in Electronic Devices Circuits.

This section includes 55 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.

51.

If 120 C of charge passes through an electric conductor in 60 sec, the current in the conductor is _________

A. 0.5 A
B. 2 A
C. 3.33 mA
D. 0.3 mA
Answer» C. 3.33 mA
Discussion
52.

In reinforced concrete members the prestress is commonly introduced by:

A. Tensioning the steel reinforcement
B. Tendons
C. Shortening of concrete
D. Rings
Answer» B. Tendons
Discussion
53.

A piston/cylinder with a cross-sectional area of 0.01 m^2 is resting on the stops. With an outside pressure of 100 kPa, what should be the water pressure to lift the piston?

A. 178kPa
B. 188kPa
C. 198kPa
D. 208kPa
Answer» D. 208kPa
Discussion
54.

A lightning bolt carrying 15,000 A lasts for 100 s. If the lightning strikes an airplane flying at 2 km, the charge deposited on the plane is _________

A. 13.33 C
B. 75 C
C. 1500 C
D. 1.5 C
Answer» E.
Discussion
55.

A solid copper sphere, 10 cm in diameter is deprived of 1020 electrons by a charging scheme. The charge on the sphere is _________

A. 160.2 C
B. -160.2 C
C. 16.02 C
D. -16.02 C
Answer» D. -16.02 C
Discussion