Chapter 23 Series Parallel Circuits Series Circuit A

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Chapter 23 Series & Parallel Circuits

Chapter 23 Series & Parallel Circuits

Series Circuit • A circuit with only one path

Series Circuit • A circuit with only one path

Parallel Circuit • A circuit with several paths for current flow

Parallel Circuit • A circuit with several paths for current flow

Series Circuit • The current is constant • I = constant

Series Circuit • The current is constant • I = constant

Parallel Circuit • The voltage is constant • V = constant

Parallel Circuit • The voltage is constant • V = constant

Series Circuit • The voltage drop is the sum of individual voltage drops •

Series Circuit • The voltage drop is the sum of individual voltage drops • VT = V 1 + V 2 + V 3

Parallel Circuit • The total current is the sum of the currents for each

Parallel Circuit • The total current is the sum of the currents for each path • IT = I 1 + I 2 + I 3

Series Circuit • The total resistance is the sum of individual reisitances • RT

Series Circuit • The total resistance is the sum of individual reisitances • RT = R 1 + R 2 + R 3

Series Circuit • The current = voltage over the sum of individual resistances •

Series Circuit • The current = voltage over the sum of individual resistances • I = V/(R 1 + R 2 + R 3 )

Parallel Circuit • 1/RT = 1/R 1 + 1/R 2 etc

Parallel Circuit • 1/RT = 1/R 1 + 1/R 2 etc

Ammeter • A device with tiny resistance that measures current in any part of

Ammeter • A device with tiny resistance that measures current in any part of a circuit

Ammeter • Must be places in series with the circuit to measure the current.

Ammeter • Must be places in series with the circuit to measure the current.

Volt Meter • A device with tiny resistance that measures voltage in any part

Volt Meter • A device with tiny resistance that measures voltage in any part of a circuit

Volt Meter • Must be places parallel with the circuit to measure the voltage.

Volt Meter • Must be places parallel with the circuit to measure the voltage.

Fuse • A fuse or circuit breaker protects against dangerously high current

Fuse • A fuse or circuit breaker protects against dangerously high current

Ground-fault Interrupter • Opens a circuit where a shock hazard exists

Ground-fault Interrupter • Opens a circuit where a shock hazard exists

Short Circuit • A circuit with very low resistance

Short Circuit • A circuit with very low resistance

A current of 12 A flows through a 120 V series circuit has resistors

A current of 12 A flows through a 120 V series circuit has resistors of 1. 0 W, 2. 0 W, 3. 0 W, & X W. Calculate: Rx, V 1, V 2, V 3, & Vx

A current flows through a 120 V parallel circuit has resistors of 1. 0

A current flows through a 120 V parallel circuit has resistors of 1. 0 W, 2. 0 W, 3. 0 W, & 4 W. Calculate: RT, I 1, I 2, I 3, I 4, & IT

Problems

Problems

Calculate the following: • R 1 =

Calculate the following: • R 1 =

Work problems 1 – 4 on P 404 & 405 in the classroom set

Work problems 1 – 4 on P 404 & 405 in the classroom set of Physics books.

Work problems 5 - 10 on P 406 - 408 in the classroom set

Work problems 5 - 10 on P 406 - 408 in the classroom set of Physics books.

Work problems 11 15 on P 410 & 411 in the classroom set of

Work problems 11 15 on P 410 & 411 in the classroom set of Physics books.

Work problems 16 18 on P 414 & 415 in the classroom set of

Work problems 16 18 on P 414 & 415 in the classroom set of Physics books.

Answer the questions on P 417 & 418 in the classroom set of Physics

Answer the questions on P 417 & 418 in the classroom set of Physics books.

Work problems A on P 418 - 420 in the classroom set of Physics

Work problems A on P 418 - 420 in the classroom set of Physics books.

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