Physics 2: Magnetic Fields and Domains
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Questions and Answers

What is the voltage across a resistor with a resistance of 7 ohms and a current of 2.74 A?

  • 19.18 V (correct)
  • 6.14 V
  • 50 V
  • 24.66 V
  • What is Kirchhoff’s Voltage Law (KVL)?

  • The current entering a junction equals the current leaving the junction.
  • The voltage across a resistor is the product of the current and resistance.
  • The sum of currents entering a node is zero.
  • The algebraic sum of voltages in each loop is zero. (correct)
  • What is the total voltage calculated in the given example?

  • 6.14 V
  • 19.18 V
  • 50 V (correct)
  • 24.66 V
  • What is the current ($I$) through a resistor of 14 ohms with a voltage of 6.14 V across it?

    <p>0.44 A</p> Signup and view all the answers

    Which type of circuit has only one pathway?

    <p>Series circuit</p> Signup and view all the answers

    In a magnetic interaction, what occurs between like poles?

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

    Which metals are attracted to magnets?

    <p>Cobalt, nickel, and iron</p> Signup and view all the answers

    What happens if you cut a magnet into two pieces?

    <p>Each piece will have two poles.</p> Signup and view all the answers

    What does Kirchhoff’s Current Law (KCL) state?

    <p>The sum of currents entering a node is zero.</p> Signup and view all the answers

    Which law states that the sum of currents entering a node minus the currents leaving equals zero?

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

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