MCQ
When a forward bias is applied to a $p-n$ junction, it
- ARaises the potential barrier
- BReduce the majority carrier current to zero
- ✓Lower the potential barrier
- DNone of the above
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| List I | List II | ||
| (I) | Two wires of same resistance are connected in series and same current is passed through them | (A) | 1 : 2 |
| (II) | Two wires of resistance R and 2R ohm are connected in series and same P.D. is applied across them | (B) | 4 : 1 |
| (III) | Two wires of same resistance are connected in parallel and same current is flowing through them | (C) | 1 : 1 |
| (IV) | Two wires of resistances in the ratio 1 : 2 are connected in parallel and same P.D. is applied across them | (D) | 2 : 1 |

