Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app

Olympiad workbookNSEPCurrent Electricity

Let V and I be the readings of the voltmeter and the ammeter respectively as shown in the figure. Let R_V and R_A be their corresponding resistances. Therefore,

Options

AR= V I
BR= V I- ( V R_V )
CR=R_V-R_A
DR= V (R+R_A ) I R_A

Correct answer

B. R= V I- ( V R_V )

Step-by-step solution

No Solution

Practice Current Electricity on Quantrex Academy →

More from Current Electricity

A resistor R is connected to a parallel combination of two identical batteries each with emf E and an internal resistance r . The potential drop across the resistance R is Paragraph: A nichrome wire A B, 100 ~cm long and of uniform cross section is mounted on a meter scale, the ₁ and B coinciding with 0 cm and 100 cm marks respectively. The wire has Two cells each of emf E and internal resistances r₁ and r₂ respectively are connected in series with an external resistance R . The potential difference between the terminals of th Paragraph: A nichrome wire A B, 100 ~cm long and of uniform cross section is mounted on a meter scale, the ₁ and B coinciding with 0 cm and 100 cm marks respectively. The wire has Paragraph: A nichrome wire A B, 100 ~cm long and of uniform cross section is mounted on a meter scale, the ₁ and B coinciding with 0 cm and 100 cm marks respectively. The wire has Paragraph: The following questions are concerned with experiments on the characterization and use of a moving coil galvanometer. The series combination of a variable resistance R ,Paragraph: The following questions are concerned with experiments on the characterization and use of a moving coil galvanometer. The series combination of a variable resistance R ,Paragraph: The following questions are concerned with experiments on the characterization and use of a moving coil galvanometer. The series combination of a variable resistance R , Full Current Electricity list All Olympiad workbook PYQs