Question
For a cell terminal potential difference is 3.5 V when circuit is open and reduces to 2.5 V when cell is connected to a resistance of R = 10Ω then determine internal resistance of cell is
2.5 = (3.5 × 10)/(10 + r) r = 4 ΩMore Physics GS Questions
- The experimental evidence that the electron exhibits wave-like characteristics was first provided by:
- The Pointing vector of electromagnetic waves has the same dimensions as that of:
- A wire loop in the shape of a square of side a carries a current I. If an infinitely long straight wire carrying the same current passes through the center...
- Going from fluorine to chlorine, to bromine and then to iodine, the electro negativity:
- The balance point in a potentiometer for a cell of emf 1.5 V is 60 cm. If a resistance of 5 Ω is connected in parallel with the cell and the new balance po...
- What is the rate of change of momentum called?
- A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:
- Which phenomenon does a hologram use to create an image?
- A larger force on a rotating body results in larger _____.
- If n resistors with R Ω each as resistance are connected in parallel, then the equivalent resistance of the network is:
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)