Conservation of Charge Worksheet
Grade 12 Physics worksheet covering the principle of conservation of charge, charge quantization, and applications in circuits.
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Conservation of Charge
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following statements best describes the law of conservation of charge?
Charge can be created or destroyed, but only in pairs of equal and opposite charges.
The total electric charge in an isolated system remains constant.
Positive charges are always conserved, while negative charges can vary.
Charge is quantized, meaning it exists only in discrete units.
2. An object gains 5.0 x 10^13 electrons. What is the net charge on the object? (Elementary charge e = 1.602 x 10^-19 C)
+8.01 x 10^-6 C
-8.01 x 10^-6 C
+3.12 x 10^32 C
-3.12 x 10^32 C
3. The elementary charge, represented by 'e', is the magnitude of the charge of a single electron or .
4. In a closed system, if a neutral object becomes negatively charged, another object in the system must have become charged by an equal amount.
5. Charge can be transferred from one object to another, but it cannot be created or destroyed.
True
False
6. The charge of any object is always an integer multiple of the elementary charge.
True
False
7. Explain the concept of 'charge quantization' and its significance in physics.
8. Describe a real-world scenario or experiment that demonstrates the conservation of charge.
9. Two identical conducting spheres, one with a charge of +6 μC and the other with a charge of -2 μC, are brought into contact and then separated. What is the final charge on each sphere?
10. In a nuclear reaction, a neutron (charge 0) decays into a proton (charge +e), an electron (charge -e), and an antineutrino (charge 0). Show how this reaction demonstrates the conservation of charge.
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