Saleha Pervez, Mansi Garg and, Poonam Singh Solutions for Chapter: Electricity and Magnetism, Exercise 1: Self Check

Which one of the following non-metal is not a poor conductor of electricity?

Which one of the following is printed on a commonly used fluorescent tube light?

Consider the following statements:

Statement I Diamagnetic substances are strongly attracted by permanent magnets.

Statement II A permanent magnet can be made from cobalt.

Which of the statement(s) given above is/are correct?

Consider the following statements:

Statement I In our houses, the current in the AC electricity line changes direction 60 times per second.

Statement II The frequency of the alternating voltage supplied is 50 Hz

Which of the statement(s) given above is/are correct?

Consider the following statements:

1. Choke coil reduces the current in the circuit.

2. The voltage used in a motor car battery is usually 12 V.

3. The temperature of a metal wire rises when an electric current is passed through it.

4. Domestic electrical wiring is basically a series connection.

Which of the statement(s) given above is/are correct?

Which of the following pairs is not correctly matched?

Consider the following statements:
$1.$ Ohm's law can be applied for semiconductor.
$2.$ Electrical resistance is having unit mho.
$3.$ The permanent magnet can be made from cobalt.
$4.$ A fuse wire is made up of an alloy of tin and aluminium. 

Which of the statement(s) given above is/are correct?

A copper voltmeter measures the:

$1$. Quantity of current passing through the circuit.

$2$. Amount of copper deposited.

$3$. Resistance of the circuit.

Which of these statement(s) is/are correct?