The sum of the changes of potential around any closed circuit loop is
a. maximum if there are no sources of emf in the loop.
b. maximum.
c. zero.
d. zero only if there are no sources of emf in the loop.
e. equal to the sum of the currents in the branches of the loop.
The sum of the changes of potential around any closed circuit loop is a. maximum if...
True or False? Kirchhoff's loop rule states that the algebraic sum of the changes in electrical potential around a closed loop in a circuit must equal zero.
The sum of the series IR drops around a closed loop must: A) Equal the applied voltage B) Equal 120 volts C) Be the same D) Equal infinity
Kirchhoft s law says that if you trace a path around any c age sources less the sum of the voltage drops must equal zero. Keeping in mind Ohm s Law, V IR, for the simple RC circuit shown in Figure 1 on the previous page where the power supply is hooked the capacitor is charging, Kirchhoff s law would say that aw says that if you trace a path around any closed-loop within a circuit, the sum of the...
Q5. Faraday's law says that a) an emf is induced in a closed loop if the magnetic flux through the loop does not change (ε = lng) = 0) b) an emf is induced in a closed loop if the magnetic flux through the loop changes ΔΦ E = -1 At c) an emf is induced in a closed loop only if a constant current is made to flow through the loop first d) an emf is induced in a...
Which of the following statements is FALSE regarding evaluating networks of resistors and batteries? Please explain! Select the correct answer a. When following the direction of a (proposed) current, the voltage change across a battery is positive ( a voltage gain) b. The sum of the currents entering a junction (node) must equal the sum of the currents exiting that junction (node). c. The sum of the current around any closed loop must equal to zero d. The sum of...
Kirchoff's voltage rule states that: O A The algebraic sum of the change in potential in a complete transversal of a loop in a circuit must be zero. B. The product of current and resistance is the voltage. OC. The algebraic sum of the currents entering a junction equals the algebraic sum of the currents leaving the junction OD. The algebraic sum of all the resistance in a circuit is zero,
The circuit diagram below shows two emf sources and a bulb connected in parallel. Also connected in the circuit is a resistor with resistance R = 0.2? . The resistance of the bulb is Rb = 0.5? , and each of the sources has internal resistance: r1 = 0.025? and r2 = 0.02? . If E1 = 13.0V and E2 = 5.0V , calculate the current I2 flowing in emf source E2. A useful strategy to evaluate your answer is...
What is Faraday's Law? o It defines the induced voltage across a coil when the magnetic field going through it changes. o It gives the direction of the induced current going through a coil when the magnetic field going through it changes. O The potential difference across a resistor is proportional to both the resistance and the current going through it O The sum of all the current going into a junction has to equal the sum of all the...
Which among the following statements is CORRECT? A) The junction rule says that the sum of the currents entering any junction must equal the sum of the currents leaving that junction. B) In a series circuit, the resistors all have the same electric potential difference. C) The direction of the magnetic force on a charged particle moving in a magnetic field is always in the same plane as the velocity and magnetic field vectors. D) Faraday's law states that induced...
Short answer questions: a. The magnitude of the magnetic field at a distance R from a long straight wire is equal to B. At what distance will the magnitude of the magnetic field be equal to 3B? b. Two long parallel wires carry equal but opposite currents. Are there any points in space where the total magnetic field is equal to zero? If so, where? If not, why not? c. A simple loop circuit contains two sources, a resistive wire,...