Current Electricity and Electrical InstrumentHard
Question
In the circuit shown the readings of ammeter and voltmeter are 4A and 20V respectively. The meters are non-ideal, then R is
Options
A.5Ω
B.less then 5Ω
C.greater then 5Ω
D.between 4Ω and 5Ω
Solution
(4 − I) R = IRV = 20 (4 − I) R = 20
4 − I is less than 4
So that, R is greater than 5Ω
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
In the previous question potential at point 0 is...A light source, which emits two wavelengths λ1= 400 nm and λ2= 600 nm, is used in a Young′s double slite...In the circuit shown in figure the heat produced in the 5W resistor due to the current flowing through it is 10cal/s. Th...A moving coil galvanometer has 150 equal divisions. Its current sensitivity is 10 divisions per milliampere and voltage ...The contribution in the total current flowing through a semiconductor due to electrons and holes are and respectively. I...