My Report

Basic Electrical Engineering Practice Test 7


Correct Answer: 2 points | Wrong: -1 point
Grades: A* (100% score) | A (80%-99%) | B (60%-80%) | C (40%-60%) | D (0%-40%)
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1. As the number of turns in the coil increases, what happens to the inductance of the coil?

2. The B/H characteristics can be determined using _______

3. A ring having a cross-sectional area of 500 mm2, a circumference of 400 mm and ϕ=800microWb has a coil of 200 turns wound around it. Calculate the flux density of the ring.

4. A coil has a resistance of 4 ohms and an inductance of 2H. It is connected to a 20V dc supply. Calculate the value of current 1s after the switch is closed.

5. When using a fluxmeter, if the flux changes from Φ to -Φ, what happens to the current?

6. Calculate the MMF when the magnetic flux is 5Wb and the reluctance is 3A/Wb.

7. What happens to the current when a ferromagnetic material is introduced within an inductor?

8. The ballistic galvanometer is usually lightly damped so that ________

9. An RL network is one which consists of ____________

10. Among the following, which is the right formula for inductance of N turns?


 

Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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