Question

which physical quantity remains constant when resistances are connected in series?​

Answer 1

Answer:

your answer is below

Explanation:

Potential difference remains constant when resistance are connected in parallel. When two resistance are connected in parallel the potential difference remain constant.

Please please please please please please please please please please mark me as a brainlist answer

Answer 2

Answer:

The physical quantity that remains constant when resistances are connected in series is current.

Explanation:

• A resistor in a  circuit limits the flow of charge, given by V=IR.
• In a circuit, if several resistors are connected together and to a battery, then the current supplied by the battery depends on the equivalent resistance of the circuit.
• The equivalent resistance of a combination of resistors depends on their individual values and how they are connected; in series or parallel combination.
• In series combination the resistors are connected end-to-end in a single line.
• The current flowing through the first resistor has no other way to go, it must pass through the second resistor, and the current from second through the third and so on.
• Current flow through the resistors can only take one path.
• Therefore, the resistors in series have a Common Current flowing through them.

Therefore, the physical quantity that remains constant when resistances are connected in series is current.