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- a copper transmission 46km long and 13.5cm in diameter carries a current of 36A. how much electrical energy (in Mj) is dissipated as thermal energy in 11hours? ‘953 p=1.72x10^-8ohms mplease answer the following A) A lightning stroke lasts 0.02s and involves a flow of 298 C. What is the current? B) An electric clothes dryer is rated at 2,600 W. How much energy does it use in 35 min?3:56 M E A 7 .l 36% O H.W3.jpg in the Circuit Shown in fig |- Cal cu late the eguival ert vesis tance at A88. 2- Calcutate the currert Total (IT), 3- Calculate the Current I, inthe (2ou2) resistana A 5n IT Slon ans ☺ Rega 12.422 @ ITs 8A
- The compressor on an air conditioner draws89.1 A when it starts up. The start-up time isabout 0.243 s.How much charge passes a cross-sectionalarea of the circuit in this time?Answer in units of C.What are the expected readings of the following in the figure below? (R = 5.80 N, AV = 6.50 V) A R AV 10.0 N 5.00 N + R 4.50 V (a) ideal ammeter (Give your answer in mA.) |413 mA (b) ideal voltmeter (Give your answer in volts.) 2 V (c) What If? How would the readings in the ammeter (in mA) and voltmeter (in volts) change if the 4.50 V battery was flipped so that its positive terminal was to the right? ideal ammeter 66.2 X mA ideal voltmeter 11How many watts does a flashlight that has 6.00×102 C pass through it in 0.500 h use if its voltage is 3.00 V?
- During 33 seconds of use, 340 C of charge flow through a microwave oven. Compute the size of the electric current.A metallic wire with resistance 8 0, crosS-sectional area 8.2x10 m², and conductivity o= 5.81×10 0 m mV/m) inside the wire is; -1 is connected to a battery of & = 14 V. The electric field E (in 3.2. A = area -L = length - Calculate the resisitance per unit length of a Nichrome wire of a. |=-W Radius 0.321mm. (Resistivity Nichrome= 150x10* Q.m) p = resistivity of R b. If a potential differnces of 10 V is maintained across a 1 m length of the Nichrome wire, what is the current in the wire? 4.00 kO
- How much does it cost (in P) to operate a 670-W split-type inverter air conditioner for 8 in 30 days, if the energy costs $9.0/kWh?d complete it by drawing the connecting wires that are needed to the multimeter. Li Fig ge UPN acroSs a- What m L2 open. What is t Li positive 0.50 If the tw the volta Fig.10 of figure 8, th ates: 10- The vo The ammeter indicates 0.5 A. the cir the vol of the ammeter AL b- What is the current carried by L2? C- What is then the current sent by the generator? a- Draw again the circuit of figure 11, and draw the connecting wires needed to measure the voltage across the lamp using the multimeter. M Fi N e figure 9, t ces l1=750 m A2 indicate would t e? Justify yo Fig.11 b- If the voltage across the dry cell is constant at 9V. what would the voltmeter indicate when the switch is: open? closed? Whacurrent of 1.98 A when connected to the 220 V mains supply. If all the energy produced in 2.19 minutes is used to heat 2.08 kg of water, determine the rise in temperature of An electric heating device consumes the device. (Specific heat capacity of water = 4200 J kg1 K-1) Note: - Express your answer in 2 decimal places. - No need to include the unit in the answer field. - Final answer should be in °C