A specially constructed kiln in a pottery workshop has Y‐connected heating elements. At one point, the voltage is measured across a heating coil, i.e. between a mains conductor and the zero point. The voltage is 98.15 V. a) What is the main voltage of the network b) How big is the grid's phase voltage Another, also specially designed oven, which is connected to the same network as the example above, is D‐connected. The current is measured in one of the additional conductors. It is 77.25 A. c) What is the current in each of the branches d) What is the voltage across them

Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b) Find the resistance of 1.00 km of wire that would cause a 0.0100% power loss. (c) What is the diameter of a 1.00-km-long copper wire having this resistance? (d) What is unreasonable about these results? (e) Which assumptions are unreasonable, or which premises are inconsistent?

A homemade capacitor is constructed of 2 sheets of aluminum foil with an area of 2.00 square meters, separated by paper, 0.05 mm thick, of the same area and a dielectric constant of 3.7. The homemade capacitor is connected in series with a 100,00- resistor, a switch, and a 6.00-V voltage source, (a) What is the RC time constant of the circuit? (b) What is the initial current through the circuit, when the switch is closed? (c) How long does it take the current to reach one third of its initial value?

Ralph has three resistors, R1, R2, and R3, connected in series. When connected to an ideal emf source E1, current I1 flows through the resistors. a. If the resistors are instead connected to a second source with E2=2E1, what is the new current through the resistors in terms of the first current? b. Show that, if each resistance is doubled and the resistors are connected in series to the second emf source, the current through the resistors is equal to I1.

Consider the circuit below, (a) What is the initial current through resistor R2? when the switch is closed? (b) What is die current through resistor R2 when the capacitor is fully charged, long after die switch is closed? (c) What happens if the switch is opened after it has been closed for some rime? (d) If the switch has been closed for a time period long enough for the capacitor to become fully charged, and then the switch is opened, how long before the current through resistor R1 reaches half of its initial value?

Consider the circuit shown in Figure P28.21 on page 860. (a) Find the voltage across the 3.00-0 resistor, (b) Find the current in the 3.00-12 resistor.

Consider a circuit that consists of a real battery with an emf and an internal resistance of r connected to a variable resistor R. (a) In order for the terminal voltage of the battery to be equal to the emf of the battery, what should the resistance of the variable resistor be adjusted to? (b) In older to get the maximum current from the battery, what should the resistance variable resistor be adjusted to? (c) In order for the maximum power output of the battery to be reached, what should the resistance of the variable resistor be set to?

NCT e-Learnin Portal Courses - Reports e-Services Academic Departments ETC - CIMS 4. The Voltmeter connected across load (Bulb) will measure [Choose any one answer] 5. A constant current source supplies a electric current of 200 mA to a load of 2k2. When the load changed to 500, the load current will be O9mA 0700mA O8A O12A 6. To measure A.C voltage the knob should be at 7.An electrical water heater is rated 3000W. What physical quantity does 3000W represent?

A potential difference of 2.95 V is applied across points a and bin the figure. R¡ is equal to 6.25 2, R, is equal to 14.52, and R3 is equal to 8.75 2. Find the current through each of the resistors, and the total current otal that the three resistors draw from the power source. DA circuit segment beginning with a single wire at point A that then splits into three parallel branches. Each of the three branches has a single resistor, and the resistors are labeled R subscript 1, R subscript 2, and R subscript 3. The parallel branches recombine after the resistors, and the circuit segment terminates as a single wire at point b. A I2 = I3 = Istal A

the voltage across a 3.71uf capacitor in a tv circuit is 4.54 mV. Find the voltage after 0.563ms if a current is given below (in uA) further changes the capacitor. i= (1+6t)^(1/3) The voltage at t = 0.563 ms is _________ mV. I have no clue on the steps to solve such a problem help would be greatly appreciated