Q. What is the full form of SPDT with respect to switches?

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Q. Which type of coil is a solenoid?

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Q. Iron is used in solenoids for ____

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Q. The number of turns of the solenoid is inversely proportional to the magnetic field.

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Q. What is the relation between the current and the magnetic field?

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Q. What is the relation between the magnetic field and the number of turns of a solenoid?

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Q. The magnetic field inside a solenoid is uniform.

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Q. What is the direction of the magnetic field with respect to the current of a solenoid?

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Q. Which among the following are not the applications of a solenoid?

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Q. What is the formula for the turn density of a solenoid?

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Q. How can we increase the magnetic field strength of a solenoid?

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Q. Who invented electrical relay?

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Q. What is the full form of MCB?

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Q. Which electrical relay contact tip material has the highest electrical conductivity?

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Q. Which type of relay can be used to automatically switch between transmitter and receiver configuration from a same antenna setup?

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Q. Solid state relays face high arching problems.

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Q. Solid state relays have only one moving part which helps in switching between “ON” and “OFF” position.

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Q. Which type of snubber network is required at the output terminal of the solid state relays to protect the semiconductor from transient spikes and unwanted noises?

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Q. Which type of solid state relay turns “ON” when a minimum operating control voltage is applied and the load voltage nearly reaches zero?

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Q. Who developed the first Solid state relay?

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