MCQ
The lead marked with the arrow is the $........$


- Acollector
- Bbase
- ✓emitter
- Dcore

It is a $p-n-p,$ transistor. The Lead marked with the arrow is the emitter. It tells the direction of the flow of the holes i.e, the flow of conventional current.

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column $I$ | Column $II$ |
| $(A)$ Point $P$ is situated midway between the wires. $Image$ | $(p)$ The magnetic fields $(B)$ at $P$ due to the currents in the wires are in the same direction. |
| $(B)$ Point $P$ is situated at the mid-point of the line joining the centers of the circular wires, which have same radii. $Image$ | $(q)$ The magnetic fields $(B)$ at $P$ due to the currents in the wires are in opposite directions. |
| $(C)$ Point $P$ is situated at the mid-point of the line joining the centers of the circular wires, which have same radii. $Image$ | $(r)$ There is no magnetic field at $P$. |
| $(D)$ Point $P$ is situated at the common center of the wires. $Image$ | $(s)$ The wires repel each other. |


Reason : The stars are much bigger in size than the planets.