Question
Which of the following is the poor conductor of
electricity?Solution
Conductors: Atoms of conducting materials have free electrons in them. When a charged body is brought in contact with a conductor, the charges are transferred to the conductor until the force of repulsion between electrons in areas of excess electrons is decreased to a minimum value. Good conductors are materials that allow charges to flow through them. · Carbon is non-metal and there are no free electrons to conduct. Hence, it is a poor conductor of electricity.
What will come in place of (?) in the given expression.
12.5 + 7.75 - 3.6 = ?Determine the simplified value of the given mathematical expression.
What will come in place of the question mark (?) in the following expression?
25% of 2000 – 50% of 500 = 100% of ?
What will come in the place of question mark (?) in the given expression?
(72 × 4 – 92) ÷ 14 = ?
(33 + 6.25% of 4096) = ? + 2 × 119
6/17 of 5/13 of 4/11
