Question

In the given circuit, connect a nichrome wire of length ‘L’ between points X and Y and note the ammeter reading. (i) When this experiment is repeated by inserting another nichrome wire of the same thickness but twice the length (2L), what changes are observed in the ammeter reading?
(ii) State the changes that are observed in the ammeter reading if we double the area of cross-section without changing the length in the above experiment. Justify your answer in both the cases.
(b) “Potential difference between points A and B in an electric field is 1 V”. Explain the above statement.​

Answer 1

Answer:

6the circuits shows a battery and four lamps all the lamps are let one lump fail and all the lamps go out which lamb failed