Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app

Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Current Electricity

Olympiad workbook · NSEP · Current Electricity

Voltage across the load L is controlled by using circuit as shown...

Voltage across the load L is controlled by using circuit as shown in figure.

P

is a potentiometer. Resistance

R_L

of the load and

R_p

of the potentiometer are equal to R . Load L is connected to the middle of potentiometer. Input voltage

V

is constant. If now

R_L

is doubled, the voltage across load will change by a factor Voltage across the load L is controlled by using circuit as shown in figure. P is a potentiometer. Resistance R_L of

Voltage across the load L is controlled by using circuit as shown in figure. P is a potentiometer. Resistance R_L of

Options

A $\frac{5}{4}$
B $\frac{7}{5}$
C $\frac{8}{9}$
D $\frac{10}{9}$

Correct answer

D. $\frac{10}{9}$

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… Olympiad workbook Paragraph: A nichrome wire A B, 100 ~cm long and of uniform cross section is mounted on a… Olympiad workbook Two cells each of emf E and internal resistances r_1 and r_2 respectively are connected… Olympiad workbook Paragraph: A nichrome wire A B, 100 ~cm long and of uniform cross section is mounted on a… Olympiad workbook Paragraph: A nichrome wire A B, 100 ~cm long and of uniform cross section is mounted on a… Olympiad workbook Paragraph: The following questions are concerned with experiments on the characterization… Olympiad workbook Paragraph: The following questions are concerned with experiments on the characterization… Olympiad workbook Let V and I be the readings of the voltmeter and the ammeter respectively as shown in the… Olympiad workbook Full Current Electricity list All Olympiad workbook PYQs