Question

A 2.0-ohm resistor and a 4.0-ohm
resistor are connected in series with
12-volt battery. If the current through
the 2.0-ohm resistor is 2.0 amperes,
the current through the 4.0-ohm
resistor is​

Answer 1

Answer :-

Current across 4Ω resistor will be 2 Amperes

Explanation :-

In the question, we are given that resistors of 2Ω and 4Ω are connected in series connection with a battery of 12 volts. In the series connection, components are connected from end to end via a wire. We know that in the series connection, current across each element remains same. We are given that current across 2Ω resistor is 2 Amperes, so it's necessary for 4Ω resistor to allow 2 Amperes of current to pàss through it.

Remember that :-

Voltage across both the resistors will not be 12 volt. Voltage doesn't remains same as the voltage of battery in series connection. Voltage will only be equal for both resistors in parallel connection of resistors.