PHY301 Final Term Solved MCQs with References by Masoom Fairy

FINALTERM EXAMINATION · Spring 2010 · PHY301- Circuit Theory · Time: 90 min Marks: 60

Q1. If we connect 3 capacitors in parallel, the combined effect of all these capacitors will be (1 marks)

1. Equal to the sum of individual capacitances (PAGE 22)
2. sum of reciprocals of individual capacitors
3. zero
4. product of all

Correct answer: Equal to the sum of individual capacitances (PAGE 22)

Q2. In an N- type semicondutor material , the majority carrier are (1 marks)

1. holes
2. electrons (PAGE 122)
3. ions
4. protons

Correct answer: electrons (PAGE 122)

Q3. Semiconductor element in pure form is called (1 marks)

1. extrinsic
2. P type
3. intrinsic (PAGE 121)
4. N type

Correct answer: intrinsic (PAGE 121)

Q4. An element with 6 protons and 6 neutrons has atomic no. value (1 marks)

1. 6 (PAGE 5)
2. 12
3. 18
4. 8

Correct answer: 6 (PAGE 5)

Q5. Isotopes of an element have (1 marks)

1. Different mass number but same atomic number
2. Different atomic number but same mass number
3. Same atomic and mass number
4. Same no. of neutron

Correct answer: Different mass number but same atomic number

_mass_numbers

Q6. Which of the following is true about the electrical circuit in your flashlight? (1 marks)

1. The battery supplies the charge (electrons) which move through the wires.
2. The battery supplies the charge (protons) which move through the wires
3. The battery supplies energy which raises charge from low to high voltage
4. Battery gets energy from circuit.

Correct answer: The battery supplies the charge (electrons) which move through the wires.

Q7. If we connect 3 capacitors in series, the combined effect of all these capacitors will be (1 marks)

1. equal to the sum of individual capacitors
2. the sum of reciprocals of individual capacitors (PAGE 22)
3. zero
4. product of all

Correct answer: the sum of reciprocals of individual capacitors (PAGE 22)

Q8. which of following relation is true for turn ratio and voltage ratio of transformer (1 marks)

1. N2/N1=V1/V2V1