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Joules to watts calculator
Joules (J) to watts (W) calculator.
Enter the energy in joules, time period in seconds and press the Calculate button:
Joules to watts calculation
The power P in watts (W) is equal to the energy E in joules (J), divided by the time period t in seconds (s):
Problem: A light bulb consumes 1,800 joules of energy in 30 seconds. What is its power consumption?
Solution:
Energy (E) = 1,800 J
Time (t) = 30 s
Power (P) = E / t = 1,800 J / 30 s = 60 W
Answer: The light bulb consumes 60 watts of power.
Joules to volts calculator
Joules (J) to volts (V) calculator.
Enter the energy in joules, charge in coulombs and press the Calculate button:
Joules to volts calculation
The voltage V in volts (V) is equal to the energy E in joules (J), divided by the charge Q in coulombs (C):
Problem: A capacitor stores 50 joules of energy with a charge of 10 coulombs. What is the voltage across the capacitor?
Solution:
Energy (E) = 50 J
Charge (Q) = 10 C
Voltage (V) = E / Q = 50 J / 10 C = 5 V
Answer: The voltage across the capacitor is 5 volts.
FAQS
Is there a free joules to volts and watts calculator app?
Yes, several free apps offer joules to volts and watts conversion including Unit Converter Pro, ConvertPad, and RapidTables online calculator. These apps provide instant conversions using standard physics formulas: Watts = Joules ÷ Time and Volts = Joules ÷ Charge for accurate energy calculations.
How do I convert joules to watts using a calculator?
To convert joules to watts, you need to divide energy (joules) by time (seconds). The formula is: Watts = Joules ÷ Time in seconds. For example, 100 joules over 10 seconds equals 10 watts. Use our free joules to watts calculator by entering your energy value and time period for instant results.
Which joules to watts calculator gives most accurate results?
Professional calculators like Omni Calculator, RapidTables, and engineering apps provide the most accurate joules to watts conversions using P = E/t formula. These calculators handle decimal precision and unit conversions automatically, ensuring reliable results for both academic and professional energy calculations.
How do you convert joules to volts using a calculator?
Converting joules to volts requires knowing the electrical charge in coulombs using the formula V = E/Q. Without charge value, direct conversion isn’t possible since voltage depends on both energy and charge. Online joules to volts calculators will prompt you to enter both energy (joules) and charge (coulombs) values.
How do I calculate joule to watt-hour conversion accurately?
To convert joules to watt-hours, divide joules by 3,600 since 1 watt-hour equals 3,600 joules exactly. The precise formula is: Watt-hours = Joules ÷ 3,600. For example, 7,200 joules equals exactly 2 watt-hours, essential for battery capacity and energy consumption calculations.
Does 1 volt equal 1 watt in electrical calculations?
No, 1 volt does not equal 1 watt – they measure different electrical properties entirely. Volts measure electrical potential difference while watts measure power consumption using the relationship: Watts = Volts × Amperes (P = V × I). One watt equals one volt multiplied by one ampere of current.
How do I convert exactly 200 joules to volts?
To convert 200 joules to volts, you must know the electrical charge in coulombs using V = E/Q formula. For example, if charge equals 10 coulombs: 200 joules ÷ 10 coulombs = 20 volts. Without the charge value, this conversion cannot be completed since voltage requires both energy and charge measurements.
What does a 360 joules to volts calculator show?
A 360 joules to volts calculator requires charge input in coulombs to show results. Example calculation: 360 joules ÷ 12 coulombs = 30 volts using the V = E/Q formula. Professional calculators include both energy (joules) and charge (coulombs) input fields for accurate voltage calculations in electrical circuits.