A 500W heating unit is designed to operate from a 200V line . By what percentage will its heat output drop if the line voltage drops to 160V? Find the heat produced by it in 10 min.
Sahay Sir > Question Answers > A 500W heating unit is designed to operate from a 200V line . By what percentage will its heat output drop if the line voltage drops to 160V? Find the heat produced by it in 10 min.
Two bulbs are marked 220 V – 100 W and 220 V – 50 W . a) which bulb will produce more illumination if they are connected in parallel to a 220 V supply? b) which bulb will produce more illumination if they are connected in series to a 220 V supply? c) Also find the total power consumed by both the bulb in each of the two parts above.
04
Sep
Two bulbs are marked 220 V – 100 W and 220 V – 50 W . a) which bulb will produce more illumination if they are connected in parallel to a 220 V supply? b) which bulb will produce more illumination if they are connected in series to a 220 V supply? c) Also find [...]
A 500W heating unit is designed to operate from a 200V line . By what percentage will its heat output drop if the line voltage drops to 160V? Find the heat produced by it in 10 min.
03
Sep
A 500W heating unit is designed to operate from a 200V line . By what percentage will its heat output drop if the line voltage drops to 160V? Find the heat produced by it in 10 min. A 500W heating unit is designed to operate from a 200V line . By what percentage will its [...]