1
IIT-JEE 2011 Paper 2 Offline
Numerical
+3
-0

Two batteries of different emfs and different internal resistance are connected as shown. The voltage across AB in volts is __________.

IIT-JEE 2011 Paper 2 Offline Physics - Current Electricity Question 15 English

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2
IIT-JEE 2010 Paper 1 Offline
Numerical
+3
-0

When two identical batteries of internal resistance 1 $$\Omega$$ each are connected in series across a resistor R, the rate of heat produced in R is J1. When the same batteries are connected in parallel across R, the rate is J2. If J1 = 2.25 J2, then the value of R in $$\Omega$$ is __________.

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