There is a step-up transformer that doubles the voltage. if the primary coil has a voltage of 10 v, what will the voltage in the secondary coil be?
a)5 v
b)10 v
c)12 v
d)20 v
e)100 v
nvm lol free points !

20 V

Explanation:

A step up transformer has smaller number of turns in the primary coil as compared to secondary coils. A voltage supplied across a primary coil is induced to secondary coil and a higher voltage is produced.

It is given that a step-up transformer that doubles the voltage.

It is fed with 10 V voltage at primary. Thus, double voltage = 2 × 10 V = 20 V would be present in secondary coil.

Voltage in the secondary coil is 20 volts.

Explanation:

A step up transformer consists of primary coil and secondary coil. The number of turns in primary turns is less than the number of turns in secondary coil.

It is given that, a step-up transformer doubles the voltage. The primary coil has a voltage of 10 V. We need to find the voltage in the secondary coil. Let it is V'. So,

So, the voltage in the secondary coil be 20 volts. Hence, this is the required solution.