Lithium-6 Nucleus and Electric Force
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Questions and Answers

What is the magnitude of the electric force F experienced by the proton P?

  • 8.2 × 10^{-8} N
  • 9.2 × 10^{-8} N (correct)
  • 6.2 × 10^{-8} N
  • 1.2 × 10^{-8} N

    • What is the direction of the electric force F experienced by the proton P?

  • Towards the lithium nucleus
  • Away from the lithium nucleus (correct)
  • Parallel to the lithium nucleus
  • Perpendicular to the lithium nucleus

    • What is the total charge Q on the dome?

  • 3.5 × 10^{-7} C
  • 1.5 × 10^{-7} C
  • 4.5 × 10^{-7} C
  • 2.5 × 10^{-7} C (correct)

    • What is the mean current I in the plastic rod during discharge?

    <p>9 × 10^{-13} A</p> Signup and view all the answers

    What is the average potential difference across the plastic rod during discharge?

    <p>6000 V</p> Signup and view all the answers

    Why do protons stay within the nucleus of lithium-6?

    <p>Due to the strong nuclear force</p> Signup and view all the answers

    What is the primary purpose of coiling a resistance wire around a thermistor?

    <p>To warm the thermistor and study its resistance</p> Signup and view all the answers

    What is the advantage of using a thermistor in this experiment?

    <p>Its resistance changes significantly with temperature</p> Signup and view all the answers

    What would be the most suitable method to analyse the collected data to determine k and n?

    <p>Logarithmic graph analysis</p> Signup and view all the answers

    What is the physical quantity being measured in this experiment?

    <p>Resistance</p> Signup and view all the answers

    What is the underlying principle behind the experiment?

    <p>Joule's Law</p> Signup and view all the answers

    What is the correct sequence of materials in increasing order of number density of charge carriers?

    <p>Insulator, semiconductor, conductor</p> Signup and view all the answers

    What happens to the maximum kinetic energy of the photoelectrons when the intensity of the incident electromagnetic radiation is doubled?

    <p>It remains the same</p> Signup and view all the answers

    What is the unit of the magnetic flux density B in the correct table heading?

    <p>Tesla (T)</p> Signup and view all the answers

    What is the time period of the electrical signal shown in the oscilloscope trace?

    <p>8 μs</p> Signup and view all the answers

    What is the force experienced by a current-carrying wire in a uniform magnetic field proportional to?

    <p>The current in the wire</p> Signup and view all the answers

    What is the angle between the current and the magnetic field if the force experienced by the wire is maximum?

    <p>90°</p> Signup and view all the answers

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