Resistance of a wire depends on, ______.
- Atemperature
- Bgeometry
- Cnature of material
- Dall the above
116 questions across 8 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
MCQ
20 Q→02Assertion (A) & Reason (B) MCQ
2 Q→03[2 Mark Questions]
12 Q→04Match The Following.
3 Q→05[4 Mark Questions]
8 Q→06Fill In The Blanks.
27 Q→07[ 1 mark questions ]
31 Q→08true or false.[1 Mark each]
13 Q→One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Answer: C.
View full solution →Answer: D.
View full solution →The values of current (I) flowing through a resistor for various potential differences V across the resistor are given below. What is the value of resistor?
| I (ampere) | 0.5 | 1.0 | 2.0 | 3.0 | 4.0 |
| V (volt) | 1.6 | 3.4 | 6.7 | 10.2 | 13.2 |
Calculate the amount of charge that would flow in 2 hours through an element of an electric bulb drawing a current of 2.5 A.
Rubbing a comb on hair makes the comb get – 0.4C.
| 1. | Electric charge | a. | ohm |
| 2. | Potential difference | b. | ampere |
| 3. | Electric field | c. | coulomb |
| 4. | Resistance | d. | newton per coulomb |
| 5. | Electric current | e. | volt |
| Column I | Column II |
| 1. Electric power | a) Volt |
| 2. Electrical energy | b) Coulomb |
| 3. Electric charge | c) Watt |
| c) Watt | d) Joule |
| Column I | Column II |
| 1. Resistor | a) Galvanometer |
| 2. Connecting wire | b) Voltmeter |
| 3. Current in an electric circuit | c) Copper |
| 4. Potential difference | d) Constantan |
Current can produce magnetic field.
True
False
The anode in electrolyte is negative.
True
False
Ammeter is connected in parallel in any electric circuit.
True
False
Electrically neutral means it is either zero or equal positive and negative charges.
True
False
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