# A fridge uses 220 watts from 110 V power source. The Fridge then draws a current from the source equal to

A fridge uses 220 watts from 110 V power source. The Fridge then draws a current from the source equal to 2 amps.

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Description : An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately equal to: A. 385Ω B. 38.5Ω C. 3.1Ω D. 31Ω

Last Answer : An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately equal to: 31Ω

Description : An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately? A.385 ohms B.38.5ohms C.3.1 ohms D.31 ohms

Description : If a 220 V heater is used on 110 V supply, the heat produced by it will be nearly (a) one half (b) twice (c) one-fourth (d) four times

Last Answer : If a 220 V heater is used on a 110 V supply, the heat produced by it will be significantly less than it would be if it were used on a 220 V supply. This is because the heater is designed to operate ... the heater, but it will be significantly less than it would be if it were used on a 220 V supply.

Description : The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be; (A) 3.6 (B) 2.5 V (C) 3.0 V (D) 6.0 V

Last Answer : The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be: 3.0 V

Last Answer : The ratio of the resistance of a 100 W, 220 V lamp to that of a 100 W, 110 V lamp will be nearly 4.

Description : A graphing calculator uses a 6.0 V battery and draws 2.6 Ã— 10âˆ’3 A of current. What is the power rating of the calculator?

Description : An electric heating element supplied with 120 volts draws 15 amps. How much power will be consumed? A. 15 watts B. 45.57 watts C. 180 watts D. 1800 watts

Description : Why is 440 V used for motors and 110/220 V used for lighting?

Last Answer : Motor load currents are large. Motors are 3-phase loads. A higher 440V voltage means lesser current for the same power and hence losses and size of cable wires is lower. Lighting is single phase ... small, hence lower voltage means less insulation in the cable wires. Ask E/O for more information

Description : The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be (A) 3.6 V. (B) 2.5 V. (C) 3.0 V. (D) 6.0 V.

Last Answer : (C) 3.0 V.

Description : The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be (A) 3.6 V. (B) 2.5 V. (C) 3.0 V. (D) 6.0 V.

Last Answer : The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be 3.0 V.

Description : A lamp is provided with 110 volts and draws a current of 0.8 amps. What is the resistance of the lamp? A. 12.2 ohms B. 88.0 ohms C. 122.2 ohms D. 137.5 ohms

Description : A 1000 watts heater is connected to a 240 V AC Supply. Then the current drawn by the heater is

Last Answer : A 1000 watts heater is connected to a 240 V AC Supply. Then the current drawn by the heater is 4.166 amperes

Description : How many volts are necessary to provide a current of 10 amperes to a motor with an in-line resistance of 11 ohms? A. 21 volts B. 110 volts C. 220 volts D. 240 volts

Description : What is the power of a portable radio that operates on 24 v two 12 v batteries in series and draws 2.2 a current?

Last Answer : The power in this case is equal to the voltage, times thecurrent. Because of the units used, the answer will be inwatts.

Description : Two bulbs 60 W and 100 W designed for voltage 220 V are connected in series across 220 V source. The net power dissipated is

Last Answer : Two bulbs 60 W and 100 W designed for voltage 220 V are connected in series across 220 V source. The net power ... B. 160 W C. `37.5 W` D. 60 W

Description : Two bulbs 60 W and 100 W designed for voltage 220 V are connected in series across 220 V source. The net power dissipated is

Last Answer : Two bulbs 60 W and 100 W designed for voltage 220 V are connected in series across 220 V source. The net power ... `37.5` W B. 75W C. 80W D. 40 W

Description : How can I install a 110 receptacle alongside a 220 receptacle using the 220 receptacle wires for power?

Last Answer : While you can physically do this it violates the ElectricalCode. 110 Volt and 220 Volt receptacles are required by theElectrical Code to be on separate breakers for safety reasons, thiswould put them on the same 220 Volt breaker.

Description : As shown in the illustration if the applied voltage is 12 VDC, the resistance of R1 is 110 ohms, and R2 is 10 kohms what is the total power consumed by the circuit? EL-0036 A. 3.6 watts B. 72 watts C. .0011286 watts D. .014243 watts

Description : A 220 V dc machine has an armature resistance o f 1-ohm. If the full load current is 20A, the difference in the induced voltage when the machine is running as a motor, and as a generator is

Last Answer : A 220 V dc machine has an armature resistance o f 1-ohm. If the full load current is 20A, the difference in the induced voltage when the machine is running as a motor, and as a generator is 40 V.

Description : A 220/440 V, 50 Hz, 5 KVA, single phase transformer operates on 220V, 40Hz supply with secondary winding open circuited. Then (A) Both eddy current and hysteresis losses decreases. (B) Both ... same but hysteresis loss increases. (D) Eddy current loss increases but hysteresis loss remains the same.

Last Answer : (A) Both eddy current and hysteresis losses decreases.

Description : 2. An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain. -Physics-10

Last Answer : The current drawn by the electric oven can be calculated using the formula P = V × I I = P/V Substituting the values, we get I = 2000 W/220 V = 9.09 A The current drawn by the electric oven is 9.09 A which exceeds the safe limit of the circuit. This causes the fuse to melt and break the circuit.

Description : A nichrome heating element connected to a 200 V supply draws an intial current of 2.2 A which settles down after a few seconds to a steady value of 2.

Last Answer : A nichrome heating element connected to a 200 V supply draws an intial current of 2.2 A which settles down after a ... is `1.7xx10^(-4) "per"^(@)C`.

Description : What is the current in a circuit with 5 ohms of resistance that uses 180 watts of power?

Description : Stuck my 110 volt computer into 220 volt! Did only the PSU burn?

Last Answer : I would think probably only the PSU. If any of your components are fried, the PSU was probs designed badly.

Description : I need a voltage adapter to convert 110 to 220 for a laptop.

Last Answer : Apple sells a handy dandy World Travel Adapter Kit. \$39.00

Description : How much money you save with 220 volt Air Conditioners instead of 110 volt?

Last Answer : It wont save you much at all this is more the type of wiring used. [email protected]

Description : If the supply voltage is 220 volts 60 Hz, what is the operating voltage of the motor controller circuitry illustrated? EL-0011 A. 110 volts DC B. 110 volts AC C. 220 volts DC D. 220 volts AC

Description : The turns ratio of transforme 'A' shown in the illustration is four to one and all taps are evenly spaced. If 110 volts were applied to terminals 'X1' and 'X3', what would be indicated across 'H1' and 'H2'? EL-0082 A. 37.5 volts B. 55 volts C. 220 volts D. 440 volts

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 220 volts were applied to terminals 'H1' & 'H2', what would be indicated across 'X1' & 'X4' with 'X2' & 'X3' connected and isolated? EL-0082 A. 55 volts B. 110 volts C. 220 volts D. 440 volts

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 110 volts were applied to terminals 'X1,3' and 'X2,4', what would be indicated across 'H1' and 'H2'? EL-0082 A. 27.5 volts B. 55 volts C. 220 volts D. 440 volts

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 440 volts were applied to terminals 'H1' & 'H2', what would be indicated across 'X1' & 'X4' with 'X2' & 'X3' connected and isolated? EL-0082 A. 110 volts B. 220 volts C. 880 volts D. 1760 volts

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 220 volts were applied to terminals 'H1' and 'H2', what would be indicated across 'X3' and 'X4'? EL-0082 A. 55 volts B. 110 volts C. 440 volts D. 880 volts

Description : The turns ratio of device 'B' shown in the illustration is two to one (total). If 440 volts were applied to terminals 'H1' and 'H2', what would be indicated across 'X1,3' and 'X2,4'? EL-0082 A. 55 volts B. 110 volts C. 220 volts D. 880 volts

Description : The turns ratio of device 'A' shown in the illustration is four to one and all taps are evenly spaced. If 110 volts were applied to terminals 'X1' and 'X3', what would be indicated across 'H1' and 'H2'? EL-0082 A. 37.5 volts B. 55 volts C. 220 volts D. 440 volts

Description : If the line voltage to the controller shown in the illustration is 440 volts, what is applied across the control circuit? EL-0080 A. 110 volts B. 220 volts C. 440 volts D. 660 volts

Description : The turns ratio of device 'A' shown in the illustration is four to one and all taps are equally spaced. If 440 volts were applied between 'H1' and 'H4', what would appear across 'X1' and 'X4'? EL-0082 A. 110 volts B. 220 volts C. 440 volts D. 1760 volts

Description : If the line voltage to the controller shown in the illustration is 440 volts, what voltage is applied across the motor when contacts 'S' close? EL-0080 A. 110 volts B. 220 volts C. 440 volts D. 660 volts

Description : Compensation of letter and bulk bag of foreign articles are a) 220(60 gold francs) & 1110( 300 gold francs) b) 110(60 gold francs) & 1110( 300 gold francs) c) 200(60 gold francs) & 1000( 300 gold francs) d) None of the above

Last Answer : b) It can be registered with an note that the deficiency would be collected from addresse

Description : Anushiya covered a definite distance at some speed. If she had moved 5 kmph faster, she would have taken 55minutes less. If he had moved 4 kmph slower, she would have taken 55 minutes more. What is the distance in km? a) 110 Km b) 220 km c) 330 km d) 440 km

Last Answer : C speed=2V1V2/(V1-V2) = 2*5*4/(5-4) =40 km/hr Distance= vt1 (1+v/v1) =40* 55/60(1+40/5) =40*11/12(1+8) =40*11/12*9 =330 km Therefore the distance is 330km

Description : How many amps in a 1000 watts at 110 volts ac?

Description : An electric clothes dryer is connected to a 100-volt source. How much current does it use if it requires 2,000 watts of electric power?

Description : A 220 V shunt motor develops a torque of 54 N-m at armature current of 10 A. The torque produced when the armature current is 20 A, is?

Last Answer : Armature torque, Ta=PØZIa/2πA So Ta1/Ta2=Ia1/Ia2 Ta2=Ta1*Ia2/Ia1        =54*20/10         =108

Description : What is the slip (as a percentage) when a 6 pole single phase induction motor operating on 220 V and 60 Hz is rotating at speed of 1140 rpm? A) 60% B) 5% C) 10% D) None of these

Last Answer : What is the slip (as a percentage) when a 6 pole single phase induction motor operating on 220 V and 60 Hz is rotating at speed of 1140 rpm? A) 60% B) 5% C) 10% D) None of these

Description : A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption?  (A) 0.1 kW (B) 0.04 kW (C) 0.01 kW (D) None of the above

Last Answer : A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption?  (A) 0.1 kW (B) 0.04 kW (C) 0.01 kW (D) None of the above

Description : A large transformer operating at no load draws an exciting current Io of 5A, when the primary is connected to a 120 V, 60 Hz source. From a wattmeter test, it is known that iron losses are equal to 180 W. Calculate ... power absorbed by the core.  (A) 600 var (B) 572 var (C) 180 var (D) 360 var

Description : For how long 220 V DC batteries can supply power UPS?

Last Answer : 220 V DC batteries can supply Power UPS for 30 minutes. Within this time class III power supply should be restored by DG’s.

Description : The amount of current flowing through a circuit with a 40 V source and 6.8 kΩ of resistance is equal to: A. 27.2 mA B. 59 mA C. 5.9 mA D. 590 mA

Last Answer : The amount of current flowing through a circuit with a 40 V source and 6.8 kΩ of resistance is equal to:  5.9 mA

Description : A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net Voltage across armature resistance at the time of plugging will be

Last Answer : A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net Voltage across armature resistance at the time of plugging will be 474 V

Description : A 230 V, 50 Hz phase controlled single-phase full-controlled SCR bridge converter draws 15 A constant dc current. If the source inductance is 3 mH, the drop in dc output voltage is (A) 4.5 V (B) 6.75 V (C) 9 V (D) 13.5 V

Last Answer : A 230 V, 50 Hz phase controlled single-phase full-controlled SCR bridge converter draws 15 A constant dc current. If the source inductance is 3 mH, the drop in dc output voltage is 9 V

Description : A 10 kVA, 400 V/200 V single phase transformer with 10% impedance draws a steady short-circuit line current of   (a) 250A (b) 50 A (c) 150 A (d) 350 A

Last Answer : A 10 kVA, 400 V/200 V single phase transformer with 10% impedance draws a steady short-circuit line current of 250A