Which metal is used as the base material in Metal Oxide Varistor?

Bismuth
Cobalt
Manganese
Zinc

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : Zinc

The correct answer is option 4 i.e Zinc.

Metal Oxide Varistor (MOV) is used for the protection of heavy electrical devices from lightning or over-voltage surges.
MOV contains a ceramic mass of zinc oxide grains sandwiched between two metal plates (the electrodes).

4 views Answered 2022-09-04 04:29

Related Questions

In the following question below are given three statements followed by three conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some Mobile are Silver. II. No Silver is a Gold. III. Some Gold are Metal. Conclusions: I. No Silver is Metal. II. Some Metal are Mobile. III. No Mobile being a Gold is a possibility?

1 Answers 6 Views

Which of the following criterion is used for any metal to be used as a cooking material?

1 Answers 7 Views

A perpendicular height drawn on the base of the triangle is ten - sixth of its base on which it is drawn. If the height is increased by 8 m and the base is decreased by 4 m, the area of the triangle remains unchanged. Find the area of the triangle.?

1 Answers 5 Views

In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/ passage and find out which of the four combinations is correct. 1. Every Sunday morning I take a light jog around a park near my home. P. Each time I jog by this lake, I see the same elderly woman sitting at the water’s edge with a small metal cage sitting beside her. Q. This past Sunday my curiosity got the best of me, so I stopped jogging and walked over to her. R. As I got closer, I realized that the metal cage was, in fact, a small trap. S. There’s a lake located in one corner of the park. 6. There were three turtles, unharmed, slowly walking around the base of the trap?

1 Answers 5 Views

In the question below is given a statement followed by two courses of action numbered I and II. You have to assume everything given in the statement to be true and then decide which of the given/ suggested courses of action logically follows for pursuing. Statement: One of the problems of the public food- processing industry is the irregular supply of raw material to other industries also. Courses of Action: The government should deregulate the supply of raw material for the food processing industry. The government should announce an attractive package to ensure regular supply of raw material. The producers of raw material are not getting a reasonable price?

1 Answers 4 Views

With reference to 'fly ash' produced by the power plants using coal as fuel, which of the following statements is/are correct 1. Fly ash can be used in the production of bricks for building construction. 2. Fly ash can be used as a replacement for some of the Portland cement contents of concrete. 3. Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic elements. Select the correct answer using the code given below?

1 Answers 5 Views

For transistor action (a) Base, emitter, and collector regions should have similar size and doping concentrations. (b) The base region must be very thin and lightly doped. (c) The emitter-base junction is forward biased and the base-collector junction is reverse biased. (d) Both the emitter-base junction as well as the base-collector junction are forward biased. Which one of the following pairs of statements is correct?

1 Answers 5 Views

Which of the following conditions must be satisfied for a transistor to be in saturation 1. Its collector to base junction should be under forward bias 2. Its collector to base junction should be under reverse bias 3. Its emitter to base junction should be under reverse bias 4. Its emitter to base junction should be under forward bias Which of the above conditions are correct?

1 Answers 5 Views

Identify the following A - A non-metallic lubricant B - A metal which does not react with water but reacts with steam C - A metal which is constituent of baking powder D - a non-metal used in fire crackers A, B, C, D respectively are?

1 Answers 14 Views

A metal compound, on heating strongly in limited supply of air, produces a colourless, odourless gas which is also present in our exhaled breath. This metal is also used for protecting iron from corrosion by applying it layer over iron surface. Which is this compound?

1 Answers 5 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)