A MOVING COIL GALVANOMETER HAS A FULL-SCALE DEFLECTION OF 3A EQUIVALENT TO 30° DEFLECTION. THE SENSITIVITY OF THE INSTRUMENT IS
A. 33.0 B. 0.1 C. 90.0 D. 10.0 ✓ The answer to the question is: D. 10.0 A moving coil galvanometer is an instrument used to detect and measure small electric currents. The sensitivity of a galvanometer refers to the amount of…
IT TAKES 4 MINUTES TO BOIL A QUANTITY OF WATER ELECTRICALLY. HOW LONG WILL IT TAKE TO BOIL SAME QUANTITY OF WATER USING THE SAME HEATING COIL BUT WITH THE CURRENT DOUBLED
A. 64 minutes B. 32 minutes C. 8 minutes D. 2 minutes E. 1 minute ✓ The answer to the question is: E. 1 minute To calculate how long it will take to boil the same quantity of water using the same heating coil…
A HEATING COIL IS RATED AT 70 W, CALCULATE THE TIME IT WILL TAKE THIS COIL TO HEAT 1.4 KG OF WATER AT 30°C TO 100°C
To calculate the time it will take for a heating coil to heat a given amount of water, we can use the formula: Q = mcΔT where Q is the heat energy transferred, m is the mass of the water,…