This question consists of two statements each linked as Assertion and Reason. While answering this question you are required to choose any one of the following four responses.
Assertion
A
: Two infinitely long wires A and B carry unequal currents both in inward direction.
Then, there is only one point (excluding the points at infinity), where net magnetic field is zero.
Reason (R): That point lies between points A and B.
Both A and R are true but R is not the correct explanation of A .
Then, there is only one point (excluding the points at infinity), where net magnetic field is zero. Reason (R): That point lies between points A and B.
Both A and R are true but R is not the correct explanation of A .
B
A is true but R is false.
C
A is false but R is true.
D
Both A and R are true and R is the correct explanation of A .
Text Solution
Verified by ExpertsThe correct answer is:
A
To the right of B, both fields are downwards and to the left of A, both fields are upwards. At mid-point between wires A and B, magnetic field due to current carrying wire A is equal and opposite to the magnetic field due to current carrying wire B. Hence, they cancel to each other.
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