Current Electricity and Electrical InstrumentHard
Question
Internal resistance of battery is 5ΩTwo identical fuses are rated at 10A. If they are joined
Options
A.In parallel, the combination acts as a fuse of rating 20 A
B.In parallel, the combination acts as a fuse of rating 5 A
C.In series, the combination acts as a fuse of rating 10 A
D.In series, the combination acts as a fuse of rating 20 A
Solution
In parallel combination current gets divided therefore parallel combination supports i = i1 + i2 is 20A in series current remain same therefore the series combination supports i = 10A.
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
Two identical galvanometers are taken, one is two be converted into an ammeter and other into a milliammeter, Shunt of m...For the potentiometer arrangement shown in the figure, length of wire AB is 100 cm and its resistance is 9 Ω Find t...Two wires of resistance R1 and R2 at 0o C have temperature coefficient of resistance a1 and a2, respectively. These are ...A zener diode, having breakdown voltage equal to 15 V, is used in a voltage regulator circuit shown in the figure. The c...A voltmeter connected in series with a resistance R1 to a circuit indicates a voltage V1 = 198 V. When a series resistor...