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A 5V battery is connected to two 20 Omeg...

A 5V battery is connected to two `20 Omega` resistors which are joined together in series.
(a) Draw a circuit diagram to represent this. Add an arrow to indicate the direction of conventional current flow in the circuit.
(b) What is the effective resistance of two resistors?
(c) Calculate the current that flows from the battery.
(d) What is the p.d. across each resistor?

Text Solution

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The correct Answer is:
`(##NCERT_PHY_X_C01_E01_157_A01##)`
(b) `40 Omega (c) 0.125A (d) 2.5V`
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LAKHMIR SINGH & MANJIT KAUR-ELECTRICITY -Exercise
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  2. In the circuit given below: (a) What is the combined resistance...

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  3. A 5V battery is connected to two 20 Omega resistors which are joined t...

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  4. The figure given below shows an electric circuit in which current flow...

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  5. A 4Omega coil and a 2Omega coil are connected in parallel. What is the...

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  6. (a) With the help of a circuit diagram, deduce the equivalent resistan...

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  7. (a) With the help of a diagram, derive the formula for the resultant r...

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  8. (a) With the help of a circuit diagram, obtain the relation for the eq...

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  9. (a) Explain with the help of a labelled circuit diagram, how you will ...

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  10. The figure given below shows three resistors: Their combined resi...

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  11. If two resistors of 25 Omega and 15 Omega are joined together in serie...

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  12. The diagram below shows part of a circuit: If this arrangement of...

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  13. In the circuit shown below: The potential difference across the 3...

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  14. A battery and three lamps are connected as shown: Which of the fo...

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  15. V(1),V(2) and V(3) are the p.ds. across the 1Omega, 2Omega and 3Omega ...

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  16. A wire of resistance R(1) is cur into five equal pieces. These five pi...

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  17. Show with the help of diagrams, how you would connet three resistors e...

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  18. Two resistances when connected in parallel give resultant value of 2 o...

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  19. A resistor of 8 ohms is connected in parallel with another resistor X....

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  20. You are given three resistances of 1,2 and 3 ohms. Show by diagrams, h...

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