Home › AP Intermediate 2nd Year › Physics › Current Electricity › The maximum current that can be drawn from a cel…
The maximum current that can be drawn from a cell of emf 1.5 V and internal resistance 0.3 Ω is:
A1.5 A
B4.5 A
C5 A
D0.5 A
Answer & Solution
Correct answer: C. 5 A
Maximum current is drawn at R = 0: I_max = ε/r = 1.5/0.3 = 5 A.
Related questions
The reactance of a capacitor $C$ at frequency $f$ in an a.c. circuit is:A bird perched on a single high voltage wire is unharmed because:The two conservation laws embodied in Kirchhoff's rules are conservation of:The resistance offered by the cell itself is called:Which device detects the current in a Wheatstone bridge?In a Wheatstone bridge, the source is connected across the:The Wheatstone bridge is made up of how many resistors?At a junction, the current entering equals the current: