Home Improvement: Aluminum Case Chassis Mounted 50W Watt 40 Ohm Wirewound Resistor - Amico

Car Audio or Theater: Kicker 40CWRT102 CompRT Series 10 inch Subwoofer Dual 2 Ohm - Kicker

Home Improvement: 40Pcs 120k Ohm 2W 5% Tolerance Through Hole Carbon Film Resistor - uxcell

Home Improvement: Amico 2 Pcs Chasis Mounted Green Aluminum Clad Wirewound Resistors 100W 40 Ohm 5% - Amico

Home Improvement: VapeSupply Kanthal 26 Gauge AWG A1 Wire 25ft Roll 0.40386 mm , 3.21 Ohms/ft Resistance - VapeSupply

Car Audio or Theater: Pair Kicker 40CS354 3.5" 3-1/2" 90 Watt 4-Ohm 2-Way Car Audio Speakers CS354 - Kicker

Home Improvement: Chassis Mounted Aluminum Shell 100W Watt 40 Ohm Wirewound Resistor - Amico

Car Audio or Theater: Pair of Kicker 40PS692 6x9" 180 Watts Peak/90 Watts RMS 2-Ohm ATV/Motorcycle Speakers - Kicker

Home Improvement: 1K 10K 20K 50K 200ohm Trimmer Potentiometer Variable Resistors 40 Pcs - Amico

CE: CablesOnline 40ft High-Quality RG8x Coax 50 OHM BNC Male/Male Antenna Cable (R-BX040) - CablesOnline

Home Improvement: 2Watt 2W 150k Ohm Axial Leads DIP Fixed Carbon Film Resistor x40 - uxcell

BISS: Amico 2 Pcs 50W Power Rating 5% 40 Ohm Green Aluminum Housed Resistance Resistors - Amico

Network Media Player: 40mm Dia Round Internal Magnetic Speaker Trumpet Horn 0.5W 8 Ohm 2Pcs - Gino

Home Improvement: IRF5210 P-Channel Power MOSFET Transistor 100V 40A 60m Ohm - Amico

CE: Multimedia 3W 3 Watt 4 Ohm 40mm Dia Aluminum Internal Magnet Speaker - Gino

BISS: 2W 22K Ohm 5% 2 Watt Metal Oxide Film Resistors 40 Pcs - Amico

BISS: Pomona 72926-C-40 IEC Insulated BNC Male 50 ohm Cable, 40" L (Pack of 5) - Pomona Electronics

Car Audio or Theater: Blackmore BAC-M40 Monoblock Car Amplifier, 1000 Watts Max Power, 300W RMS Power at 4 Ohms - Blackmore

BISS: INTERNATIONAL RECTIFIER IRLB3034PBF N CH MOSFET, 40V, 195A, TO-220AB - INTERNATIONAL RECTIFIER

CE: 4 Pcs 3W 8 Ohm 40mm Dia Round Metal Internal Magnet Mini Speaker - uxcell

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40 Ohm Popular Q&A

Q: What power is consumed by a resistor of 40 ohm supplied at 400v?
A: You may find it helpful to use Ohm's law and the definition of electrical power. Read More »

Q: What is the resistance of 70 ohms 40 ohms 30 ohms in parallel?
A: 1/(1/70 + 1/40 + 1/30) = 13.778. Read More »

Q: How many watts could i push to a 40ohm speaker
A: Until high power stereos became commonplace, most car radios only p... ...MORE... Read More »

Q: What amp goes with a 400w 40ohm speaker?
A: Are you certain about the impedance, 40 ohms is very unusual. Are you sure you do not mean 4 ohms? If so then any amplifier capable of driving 4 ohms will work ... Read More »

Q: What is the current across the 4.0 ohms resistor?
A: You start by finding the equivalent of 8 and 24 ohm in parallel. (8 x 24) /(8 + 24) = 6 ohms. That is in series with a 6, = 12 ohms. That has 24 ohm in parallel... Read More »