Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
JEE Main & Advanced
Physics
Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
Question Bank
Numerical Value Type Questions - Current Electricity
question_answer
A voltmeter of resistance \[{{R}_{V}}\] and an ammeter of resistance \[{{R}_{A}}\]are connected in series across a battery of emf E and of negligible internal resistance. When a resistance R is connected in parallel to voltmeter, reading of ammeter increases to three times while that of voltmeter reduces to one-third. If \[{{R}_{v}}=\lambda \] \[{{R}_{A}}\]. Find value of\[\lambda \].