List of top Physics Questions on Cells, Emf, Internal Resistance asked in NEET (UG)

एक प्रतिरोधक को, 12 V वि.वा. बल (emf) और 2 \(\Omega\) के आंतरिक प्रतिरोध वाली एक बैटरी से जोड़ा गया है। यदि परिपथ में विद्युत धारा 0.6 A है, तो बैटरी की टर्मिनल वोल्टता है: 
 

In the circuit shown in the figure, the input voltage Vi is 20V, VBE = 0 and VCE = 0. The values of IB , IC and β are given by
the input voltage Vi is 20V, VBE = 0 and VCE = 0
The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 Ω is
The resistances of the four arms P, Q, R and S in a Wheatstone's bridge are 10 ohm, 30 ohm, 30 ohm and 90 ohm, respectively. The e.m.f. and internal resistance of the cell are 7 volt and 5 ohm respectively. If the galvanometer resistance is 50 ohm, the current drawn from the cell will be