Question

Помогите пожалуйста 1. Определение силы тока.2. Расчётная формула силы тока. Какие величины входят в формулу.3. Единица измерения силы тока в системе СИ дольные и кратные единицы.4. Как называется прибор для измерения силы тока. Как он подключается в цепь и обозначается.1. Определение эл. напряжения.2. Расчётная формула эл. напряжения. Какие величины входят в формулу.3. Единица измерения в системе СИ дольные и кратные единицы.4. Как называется прибор для измерения напряжения. Как он подключается в цепь и обозначается.

Answer 1

Ответ:

Это ты в каком классе? Просто интересно

Answer 2

Definition of Electric Current:

Electric current is the flow of electric charge through a conductor. It is the rate at which electric charges pass through a given point in a circuit. The flow of current is typically caused by the movement of electrons in a conductor. Electric current is measured in amperes (A).

Calculation Formula for Electric Current:

The formula for calculating electric current is:

I = Q / t

Where: - I is the electric current in amperes (A) - Q is the electric charge in coulombs (C) - t is the time in seconds (s)

The formula states that electric current is equal to the electric charge passing through a point in a circuit divided by the time it takes for the charge to pass.

Unit of Measurement for Electric Current in the SI System:

The unit of measurement for electric current in the International System of Units (SI) is the ampere (A). The ampere is defined as one coulomb of charge passing through a point in a circuit per second.

In addition to the ampere, there are also decimal and multiple units used to measure electric current. Some of these units include milliamperes (mA), microamperes (μA), and kiloamperes (kA). These units are used to express current values that are smaller or larger than the ampere.

Instrument for Measuring Electric Current:

The instrument used to measure electric current is called an ammeter. An ammeter is connected in series with the circuit, meaning it is placed in the path of the current flow. It is denoted by the symbol "A" and is connected in such a way that the current passes through it. The ammeter provides a reading of the current flowing through the circuit.

Definition of Electric Voltage:

Electric voltage, also known as electric potential difference, is the difference in electric potential energy per unit charge between two points in an electric circuit. It represents the force that drives electric charges to move in a circuit. Electric voltage is measured in volts (V).

Calculation Formula for Electric Voltage:

The formula for calculating electric voltage is:

V = W / Q

Where: - V is the electric voltage in volts (V) - W is the electric potential energy in joules (J) - Q is the electric charge in coulombs (C)

The formula states that electric voltage is equal to the electric potential energy divided by the electric charge.

Unit of Measurement for Electric Voltage in the SI System:

The unit of measurement for electric voltage in the International System of Units (SI) is the volt (V). The volt is defined as one joule of energy per coulomb of charge.

Similar to electric current, there are decimal and multiple units used to measure electric voltage. Some of these units include millivolts (mV), microvolts (μV), and kilovolts (kV). These units are used to express voltage values that are smaller or larger than the volt.

Instrument for Measuring Electric Voltage:

The instrument used to measure electric voltage is called a voltmeter. A voltmeter is connected in parallel with the circuit, meaning it is connected across the points where the voltage is to be measured. It is denoted by the symbol "V" and provides a reading of the voltage difference between the two points.

I hope this helps! Let me know if you have any further questions.