Question

An electric iron draws $5amp$, a TV set draws $3amp$ and refrigerator draws $2amp$ from a $220volt$ main line. The three appliances are connected in parallel. If all the three are operating at the same time, the fuse used may be of

• A. $15\text{ampere}$
• B. $10\text{ampere}$
• C. $20\text{ampere}$
• D. $5\text{ampere}$

Answer 1

The correct option is B $10\text{ampere}$

Total load current $=5+3+2=10$
Current capacity of a fuse wire should be slightly greater than the total rated load current.