Magnitude of the average current I in the wire of the small loop:

Q: Determine the current and its positive direction (left/right or up/down) that flows through each of…

A: Given,A circuit shown in figure below find  current  in the given circuit.

Q: A steady current flows in a metallic conductor of non-uniform cross-section. Which of these…

A: When a steady current is flowing through a conductor of non uniform cross section, the current…

Q: When the switch S is toggled to the left, the capacitor C charges through the resistor R. When the…

A: Resistor used for charging VC=ε1-e-tRCR=-tCln1-VCε=-1.30 s8.50 μFln1-755 V1260 V1 μF10-6 F=1.67×105…

Q: LAQ 3. In the circuit below, there are four branches; the top branch is branch number one that has…

A: Step 1: Let us redraw the circuit, showing the currents and labeling itR = 6.20 Ohm, and ΔV=6.50…

Q: Three wires are connected at a branch point. One wire carries a positive current of 8 A into the…

A: According to the Kirchhoff's Junction law, the net electric current at a junction is zero. it means…

Q: charge of 4.71 µC is discharged through a 1.45-kΩ resistor. (a) Calculate the current in the…

A:

Q: A battery is connected to a parallel-plate capacitor C through a resistor R as shown in the figure…

A:

Q: current at time

A:

Q: a). A resistor R, connected to an electric circuit has a potential difference of 30 (V). If a…

A: We have to apply Ohm's law to solve this problem. Ohm's law:  if the temperature remains constant,…

Q: Show that the electrical charge inside a conductor decreases exponentially with time.

A: Introduction: Conductors are the materials or substances which allow electricity to flow through…

Q: Switch A +Qo C = 2 µF R1 = 2 2 R1 -Qo R2 = 4 2 %3D R2 Qo = 36 µC %3D

A: The capacitor discharging equation is given by  Io=(V/R) e-t/RC R = R1+R2 = 2+4 = 6 ohm

Q: If current I1 = 4.30 Ais flowing into the junction, and I2 = 2.30 A of current flows out of one of…

A:

Q: (a) Calculate the current in the resistor 9.00 us after the resistor is connected across the…

A: The given data:   The capacitance, C = 2.00×10-9 F The charge, q0 = 5.57×10-6 C The resistor, R =…

Q: An electric circuit has a battery with an EMF of 1.50 V. Its positive terminal is connected to its…

A: Given information: Here, V is the potential difference across the wire loop of radius r, ρ is the…

Q: PART (1) Assume capacitor is fully charged when switch is at position 'a' for about 10 minutes. The…

A: Solution: The current discharging through the RC circuit is given by, I=I0e-t/RCI=VRe-t/RCat…

Q: For current to flow in a circuit, there needs to be a continuous path with no gaps.

A: Electric current always flow when the circuit is closed, that means path is continuous without any…

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.