Currents and Charges

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

Luigi Galvani

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

Electric current

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

Powering computers

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

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

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

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

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