MCQ
The current from the battery in circuit diagram shown is .............. $A$


- ✓$1$
- B$2$
- C$1.5$
- D$3$

On further solving equivalent resistance $R = 15\,\Omega $
Hence current from the battery $i = \frac{{15}}{{15}} = 1\,A$
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Reason : Magnetic field energy density is proportional to square of current.
