Current Electricity and Electrical InstrumentHard
Question
The network shown in figure is a part of a complete circuit. If at a certain instant the current ′i′ is 5 A and is decreasing at the rate of 103 A/sec. then VA − VB is :-
Options
A.5 V
B.10 V
C.15 V
D.20 V
Solution
VA - RI - E - L 
= VB
VA - VB = E + RI + L
= VBVA - VB = E + RI + L
Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
The terminal voltage is when a current of 2A is flowing through 2Ω resistance, then the internal resistance of cell...Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit v...For the circuit shown in the figure...The resistance of hot tungsten filament is about 10 times the cold resistance. What will be the resistance of 100 W and ...Three copper wires of lengths and cross sectional areasare (l,A), (2l,A/2) and(l/ 2,2A). Resistance is minimum in...