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Ac Voltage

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Pen Style Non Contact Alarm AC Voltage Detector with LED illumination

The Non Contact Detector Pen designed for electrical testing. This Voltage Tester Pen is only used to judge whether the conductor is live or not.LED flash when near an AC Detector Pen conductor. Fits in a shirt pocket for convenience. All outer surfaces of the Ac Voltage Detector are non-conductive for safety. Detects voltage without metallic contact. Quickly locates the hot, neutral and ground terminals in any receptacle. Before each use, make sure tester is in order or not by testing a known working circuit that is within the rating of this unit, when the tip of tester lights, it means voltage exist, if no any indication, voltage could still be existed not rely on this Unit with shielded wire. Operation may be affected by difference in socket design and insulation thickness and type. Made of plastic

View this Voltage Tester Pen at:

http://www.szprice.com/products/Pen-Style-Non-Contact-Alarm-AC-Voltage-Detector-with-LED-illumination_2031.html

Features:

  • · Detects Ac Voltage without metallic contact
  • · White LED illumination light, convenient for operate in darkness
  • · Fits in a shirt pocket for convenience
  • · Features a alarm prompt sound
  • · Entire outer surface are non-conductive for safety, helps avoid high voltage shock
  • · Quickly locates the hot, neutral and ground terminals in any receptacle
  • · Voltage Sensitivity: 90~1000V AC
  • · Powered by 2 * 1.5V AAA batteries (not included)

Function:

Detects Ac Voltage without metallic contact.
This Voltage Tester Pen is only used to judge whether the conductor is live or not.
Red LED voltage indicator, convenient for operate in darkness.
Fits in a shirt pocket for convenience.
Entire outer surface are non-conductive for safety, helps avoid high voltage shock.
Before each use, make sure tester is in order or not by testing a known working circuit that is within the rating of this unit,

when the tip of tester lights, it means voltage exist, if no any indication, voltage could still be existed not rely on this Unit

with shielded wire.
Quickly locates the hot, neutral and ground terminals in any receptacle.

Specifications:
Voltage Sensitivity: 90 - 1000V AC
Temperature: -10 to 50°C
Storage: -10 to 50°C
Humidity: 80%(0 to 30°C)
Altitude: 3000m
Cleaning: Clean with damp cloth
Powered by: 2 x 1.5V AAA batteries (not included)
Voltage Sensitivity: 90 - 1000V AC
Temperature: -10 to 50°C
Storage: -10 to 50°C
Humidity: 80%(0 to 30°C)
Altitude: 3000m
Cleaning: Clean with damp cloth
Powered by: 2 x 1.5V AAA batteries (not included)
Size: 14 x 1.5cm (Length x Diameter)
Color: black and white


Works as Product Manager at China Leading Electronics Wholesaler Szprice.com, having 5 years experience on electronics products development.

Article Source: ArticlesBase.com


An inductor with L = 39 mH is connected in parallel with a capacitor with C = 60 µF.?
(a) If they are connected to an AC voltage source with f = 2.3 kHz, is the current larger in the inductor or in the capacitor? I calculated "in the inductor" to be the correct answer here. (b) At what frequency is the current amplitude the same? I don't even know what to do for this one!!

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Physics Help! Thanks!?
In some places, insect "zappers," with their blue lights, are a familiar sight on a summer's night. These devices use a high voltage to electrocute insects. One such device uses an ac voltage of 4335 V, which is obtained from a standard 126.0 V outlet by means of a transformer. If the primary coil has 20 turns, how many turns are in the secondary coil?

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Current in AC circuit...?
A 190 uF capacitor is connected in series with a 22 ohm resistor and a 60 Hz AC voltage source. The voltage supplied to the circuit is 120 V. Determine the current I in the circuit. Please show work! Thanks!!

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A 185 F capacitor is connected in series with a 17 resistor and a 60 Hz AC voltage source. The voltage suppli?


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What is the frequency of this AC voltage?
The power supply in an AC circuit with a 23.73 capacitor delivers a peak voltage of 40.18 V. The maximum current is 0.2695 A. What is the frequency of the AC voltage?

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At what frequency is the rms current largest?
The AC voltage source in an RLC circuit delivers 50 V rms voltage at an unknown frequency. The resistance in the circuit is 25, the capacity is 120.88 and the inductance is 56.18 . At which frequency is the rms current the largest

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What is the peak current?
The AC voltage source in an RLC circuit delivers 100 V rms voltage at a frequency of 250 s-1. The resistance of the resistor is 74.06 Ohms, the capacitive reactance is 58.76 and the inductive reactance is 117. What is the peak current?

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