Magnetic Effect of Electric Current

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Questions and Answers

What is the phenomenon associated with the interaction between electric current and magnetic fields?

  • Electromagnetic induction (correct)
  • Thermal conduction
  • Electrostatic discharge
  • Magnetic resonance

How does the strength of the magnetic field produced by a current-carrying wire change with an increase in the current?

  • Increases (correct)
  • Decreases
  • Remains constant
  • Becomes zero

What is the unit of measurement for magnetic field strength?

  • Watt
  • Joule
  • Ohm
  • Tesla (correct)

Which of the following statements best describes the magnetic effect of an electric current?

<p>It is the phenomenon where a magnetic field is produced by the flow of electric current. (B)</p> Signup and view all the answers

What happens to the strength of the magnetic field produced by a current-carrying wire if the current is doubled?

<p>The strength of the magnetic field becomes four times as strong. (A)</p> Signup and view all the answers

In which direction is the magnetic field around a straight current-carrying wire, according to the right-hand rule?

<p>Clockwise when viewed in the direction of conventional current flow (D)</p> Signup and view all the answers

Which of the following statements is true regarding the relationship between force and pressure?

<p>Force and pressure are inversely proportional to each other. (A)</p> Signup and view all the answers

What is the effect of increasing the area on the pressure exerted by a given force?

<p>The pressure decreases (C)</p> Signup and view all the answers

In which of the following scenarios would a person experience the greatest pressure due to a force applied?

<p>Applying a large force on a small area (B)</p> Signup and view all the answers

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