If the difference in the currents
had been negative,
the circuit would flow in the opposite direction.In the sentence,
subjunctive form is to used since it is used to express
hypothetical situations.
Quote:
(A) had been negative, the circuit would flow in the opposite direction.
Subjunctive form combination of
had been and
would flow is incorrect
Incorrect
Quote:
(B) were negative, the circuit would have flown in the opposite direction.
If the difference in the currents
were negative, the circuit would have flown in the opposite direction.The combinations of
were and
would have flown is incorrect
Incorrect
Quote:
(C) had been negative, the circuit would be flowing in the opposite direction.
Subjunctive form combination of
had been and
would be flowing is incorrect
Incorrect
Quote:
(D) were negative, the circuit will flow in the opposite direction.
With subjunctive form
were , usage of
will flow is incorrect.
Incorrect
Quote:
(E)had been negative, the circuit would have flown in the opposite direction.
Subjunctive form requires use of right combination of
had been and
would have flownCorrect
IMO E