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Sahay Sir > Question Answers > NCERT Class 8 > Maths > Chapter 12 - Exponents and Powers > 149. Repeater Machine Similarly, repeater machine is a hypothetical machine which automatically enlarges items several times. For example, sending a piece of wire through a (× 2^4) machine is the same as putting it through a (× 2) machine four times. So, if you send a 3 cm piece of wire through a (× 2^4) machine, its length becomes 3 × 2 × 2 × 2 × 2 = 48 cm. It can also be written that a base (2) machine is being applied 4 times.

149. Repeater Machine Similarly, repeater machine is a hypothetical machine which automatically enlarges items several times. For example, sending a piece of wire through a (× 2^4) machine is the same as putting it through a (× 2) machine four times. So, if you send a 3 cm piece of wire through a (× 2^4) machine, its length becomes 3 × 2 × 2 × 2 × 2 = 48 cm. It can also be written that a base (2) machine is being applied 4 times.

149. Repeater Machine Similarly if you send a 3 cm piece of wire through a (× 2^4) machine its length becomes 3 × 2 × 2 × 2 × 2 = 48 cm. It can also be written that a base (2) machine is being applied 4 times. repeater machine is a hypothetical machine which automatically enlarges items several times. For example sending a piece of wire through a (× 2^4) machine is the same as putting it through a (× 2) machine four times. So