# What can happen if too much current goes through a device?

## What can happen if too much current goes through a device?

If the current is too large, the heat loss can damage the circuit, burn the resistors, or even burn the surrounding objects. Even with circuits designed to prevent such situations, accidents can happen, such as when wires touch each other unexpectedly.

## What happens when a device demands a higher amperage than a power source can provide?

If a device demands more current than be supplied it will trip a breaker. The breaker will respond to the current demand as though there is a short circuit. The voltage of the power source will drop from overloading or even shut down. It’ll be a case of over-load, because of increase in the demand of voltage.

What happens if the amperage is too low?

We recommend higher amperage to ensure cooler power supply and optimal charge time. If you get a charger with amperage less than your original power supply, you risk overheating your charger, burning it and in many case your device will stop functioning and/or charging.

### What happens if there is not enough current in a circuit?

If it can’t supply enough current, the voltage will drop. The voltage to current relationship is determined by the load.

### Do more amps mean more power?

Amps basically measure how effectively the motor cools itself, not how much power it has. With this in mind, more amps can be good because motors will run longer and won’t heat up as fast. Remember heat is what kills a motor. Regarding cordless tools, the more amps the battery has, the longer the tool will run.

What causes voltage to drop as current increases?

As a little “information for the layman”: Theoretical power supplies can output infinite current. Practical power supplies have an internal resistor that is the sum of all the wiring and other components. In the model of such a power supply, the resistor is what causes voltage to drop as current increases.

## What happens when a device draws more current than the power supply?

A load circuit might, very briefly, draw more than the power supply can output when the load is first turned on. For instance if the load has a lot of capacitors that need to charge up, the charging current might flow in a large spike, which then settles down to much less than the supply’s capacity once the capacitors are charged.

## What happens if your power supply is too high?

It depends upon the nature of the appliance but generally speaking if the voltage is too high it draws too much current and burns out, if the voltage is too low it draws too little current and/or does not perform to its rating. The mathematical reference is Ohm’s Law and the Power Triangle.

What happens when voltage is too high in a circuit?

Too high a voltage will cause a spillage of amps in the circuit and ruin it, just like water on the carpet. Ultimately it is the amps that causes the damage, but you won’t get amps all over the place if you don’t exceed the rated voltage ServiceTitan® is built to grow your electrical business.