Currents and Charges

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Questions and Answers

Which scientist discovered the connection between physics and biology through electrical experiments on a frog?

  • Alessandro Volta
  • Michael Faraday
  • Benjamin Franklin
  • Luigi Galvani (correct)

What is the term used to describe the movement of electric charge?

  • Electrostatic discharge
  • Electric current (correct)
  • Electromagnetism
  • Static electricity

Which of the following is NOT mentioned as an application of electric currents?

  • Powering computers (correct)
  • Powering refrigerators
  • Powering lights
  • Powering cars

What did Luigi Galvani notice when conducting electrical experiments near a dissected frog?

<p>The frog's legs twitched (D)</p> Signup and view all the answers

Which of the following is NOT mentioned as a device based on the principles of static electricity?

<p>Automobile engines (D)</p> Signup and view all the answers

Which of the following is true about conventional current?

<p>It is defined in terms of positive charge movement (A)</p> Signup and view all the answers

In a common conductor, such as copper, current is primarily due to the motion of which type of charged particles?

<p>Electrons (A)</p> Signup and view all the answers

In certain particle accelerators, a current exists when which type of charged particles are set in motion?

<p>Protons (D)</p> Signup and view all the answers

In which cases can current be the result of positive charges moving in one direction and negative charges moving in the opposite direction?

<p>Only in gases and dissolved salts (D)</p> Signup and view all the answers

Which part of an atom is relatively fixed inside the nucleus?

<p>Protons (B)</p> Signup and view all the answers

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