An experimental electric taxi is powered by six solar panels?
In full sunlight, each of the six solar panels transfers 85 joules of energy every second to the batteries which drive the electrical motor.
a) What is the maximum energy transferred to the batteries in 60 seconds????
b) ASolar cells are expensive. Give two reasons why they are used to generate electricity?
a) 85 J * 6 panels *60 sec = 30,600 J
b) 1. Solar panels make DC electricity which can be directly utilized by batteries which need DC power input.
2. As in the taxis, solar power can be made portable so batteries can be charged on the go so you can go longer distances before recharging batteries. In full sunlight the batteries may make enough power without drawing on the batteries at all.
3. Solar power has no emissions at all and consumes no fossil fuels at all
