A moving coil meter is a very commonly used form of analogue voltmeter because of its sensitivity, accuracy, and linear scale, although it only responds to d.c. signals. As shown schematically in Figure 7.3, it consists of a rectangular coil wound round a soft iron core that is suspended in the field of a permanent magnet. The signal being.

Assertion: Soft iron is used as transformer core. Reason: Soft iron has narrow hysteresis loop. A. If both assertion and reason are t rue and the reason is the correct explanation of the assertion. B. If both assertion and reason are true but reason is not the correct explanation of the assertion C. If assertion is true but reason is false. D.

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Which type of network cable is used to connect the components that make up satellite communication systems? Explanation: Coaxial cable is commonly used to connect the various components that make up satellite communication systems and cable TV. Where straight through and crossover cables are used give valid reasons? Usually, straight through.

Why is soft iron preferred for making the core of a transformer?

Soft iron is used to make the core of the transformer because of its High coercivity and low retentivity. Explanation: The core of a transformer is made of soft iron because it has high permeability so it provides complete linkage of magnetic flux of the primary coil to the secondary coil.

The characteristic properties of the material suitable for making the core of a transformer are as follows:→ low coercivity and low retentivity→ low hysteresis loss→ High magnetic susceptibility→ High permeability→ High resistivity.

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Xylem tissue is made up of 4 kinds of cells. They are : 1. Tracheids 2. Vessels 3. Xylem parenchyma 4. Xylem fibres

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