Question

your brother has made a battery operated torch using two cells and has come to ask you how he may make the torch more powerful. what would you advice him

Answer 1

By putting the cells in series so that the emf of the cells increase that result the brighter light by the torch

Pls put it the brainliest

Answer 2

This answer may help you,

1. Using higher voltage battery

2. Using a good quality lens

3. Using a more shiny and clean reflector of the torch.

4. Using a good quality LED bulb.

REGARDS,

@manas