so 2.5mA=0.0025 ampere.

Moreover, What’s a milliamp hour?

Glossary Term: milliamp-hour

A measure of charge (or current flow over time). … The amount of charge transferred in that hour is 3,600 coulombs (ampere-seconds). A milliampere-hour (mAh or milliamp-hour) is a thousandth of an amp-hour. An ampere-second (A-s or amp-second) is an amp supplied for one second.

How many watts is 2.5 amps?

Watts to amps at 120V (AC) chart

Also How many amps are 500ma? Milliampere to Ampere Conversion Table

When a 12V battery is connected across an unknown resistor there is a current?

When a 12V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit.

19 Related Questions Answers Found

Does a higher Ah battery give more power?

In general, higher amp hours mean more runtime and higher voltage means more power. You can read more about the relationship between voltage and amp-hours here.

How many hours does 6000mah last?

A 6000 mAH battery can theoretically provide 1000mA for 6 hours, 6000mA for 1 hour, 100mA for 60 hours, and 10mA for 600 hours.

Which is bigger mAh or Ah?

MilliAmp hour means how much current a battery will discharge over a period of one hour. Higher numbers here reflect a long battery runtime and or higher storage capacity. Higher mAh ratings do not necessarily reflect on speed but more on runtime. … 1000 mAh is equal to a 1 Amp Hour (AH) rating.

How many watts is 2 amps?

Amps to watts table (120V)

How many amps is 600 watts?

Watts To Amps Table (At 120V)

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Aug 24, 2020

How many watts is 220 volts?

Does 500ma equal 0.5 a?

Five-hundred milliamperes (mA) is equal to 0.5 amperes (A), which are also commonly called amps. In the metric system, an ampere is the unit for measuring and representing electric current. … Thus, to convert 500 mA to amps, you can multiply 500 by 0.001, which gives you 0.5.

Which is bigger amps or milliamps?

The only difference between an amp and a milliamp is that an amp is 1,000 times larger than a milliamp. Both amps and milliamps are metric units used by scientists to measure electrical current, although at different scales.

How many amps is 800mah?

How many amps is 800mah? 1000 mAh is equal to a 1 amp-hour (AH) rating, and a battery rated at 1000 mAh can provideusable voltage at a current of 1 amp for a period of 1 hour.

When a 12v battery is connected across an unknown resistor there is a current of 2.5 mA in the circuit value of resistance is?

In the question the values of voltage V is and the value of the current I through the circuit are given so after substituting these values in the ohm’s law formula we can get the value of unknown resistance. Therefore, we are getting the value of the unknown resistance as 4.8 Kilo ohms.

When a 4V battery is connected across an unknown resistor there is a current of 100 mA?

V=IR V = 4V I = 100 mA = 0.1 A Hence R = V/I = 4/0.1 Ω = 40 Ω.

What is the voltage of a 12 volt battery?

The standard automotive battery in today’s vehicles is a 12-volt battery. Each battery has six cells, each with 2.1 volts at full charge. A car battery is considered fully charged at 12.6 volts or higher. When the battery’s voltage drops, even a small amount, it makes a big difference in its performance.

Whats the difference between a 2.0 Ah battery and a 4.0 Ah battery?

A 2.0Ah battery pack will have five 3.6V cells – each with 2.0Ah capacity – connected in series, and a 4.0Ah pack will have two sets of five batteries connected in parallel.

What is the difference between 4Ah and 5Ah battery?

These two batteries have the same dimension and have the same voltage. The only difference is confirmed by the small weight disparity in the power of the amp-hour. … If you are using a 4Ah battery and heading towards the 5Ah would mean that your application could run up to 25% longer.

Is higher mAh battery better?

Batteries with larger mAh ratings generally last longer than those with smaller ratings, assuming that the batteries are subjected to the same patterns of usage, but it may not mean a better battery. The milliampere hour represents a unit of electrical charge commonly used to measure battery capacity.

Is 6000 mAh good for a portable charger?

According to the battery capacity, the 6000mAh power bank can charge your iPhone at least three times. Compared with iPhone, Android Phones will be featured with big screens which means they may have bigger sizes than iPhone. … It could be put into handbag and backpack to enable you charge on the go.

How long will a 7000 mAh battery last?

Industry’s First 7,000mAh Monster Battery

The segment-first 7,000mAh battery cell can easily deliver 32 hours of video playback time and up to 150 hours of music playtime on one full charge cycle.

Is a 4000mah battery good?

For an average user, a battery over 4,000mAh should be enough to last a day. In addition to the battery capacity, you should also look at the charging speed of the device. Introduction of fast charging has made it easier to charge your device and you no longer have to leave it plugged in overnight.

How many hours is 200Ah?

What are volts and amp hours? Deep cycle batteries have a specific voltage and amp hour rating. Amp hours refers to the amount of current that is supplied from the battery over a certain period of time. If you have a 200ah battery, it can supply 20 continuous amps for 10 hours or 10 amps for over 20 hours.

How many Ah battery do I need for home?

The battery you need will have to be powerful enough to provide the required power for at least 2 hours. As battery voltage is generally taken at 12 Volts, here is how you calculate the battery capacity. So, a battery with capacity equal to or higher than 140 Ah will suffice for your home.

Does a higher mAh battery last longer?

The mAh capacity rating refers to the storage capacity available for a particular battery. A battery with a capacity rating of 1800 mAh could deliver a current of 1800mA for one hour. Higher mAh ratings for the same battery type will generally mean longer run times.

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