What is thermal resistance of two rods placed in series ?

n conductors, each of resistance r, when connected in parallel, give an effetive resistance R. What will be resistance, if they are connected in series?

A student set up electric circuit shown here for finding the equivalent resistance of two resistors in series. In this circuit

A potentiometer wire of length 100 cm has a resistance of 10Omega. It is connected in series with a resistance and an accumulator of emf 2V and negligible internal resistance. A source of emf 10 mV is balanced against a length of 40 cm of the potentiometer wire. what is the value of the external resistance?

A d.c. supply of 120 V is connected to a large resistance X. A voltmeter of resistance 10 k Omega placed in series in the ciruuit reads 4 V. What is the value of X?

Why are resistance connected in series ?

What are thermal neutrons?

Equivalent resistance of three resistros each of resistance of 2 ohm connected in series as determined experimentally should her