10th U2 series and parallel

Types of Connections in electrical circuits

Multiple Choice

$$I=\frac{∆Q}{∆t}$$

Review: Electric Current is the flow of electrical charges per unit of time and its ...

• Symbol: I,

  Unit: ampere,

  Unit symbol: A

• Symbol: Q,

  Unit: ampere,

  Unit symbol: A

• Symbol: I,

  Unit: coulomb,

  Unit symbol: C

• Symbol: Q,

  Unit: volt,

  Unit symbol: V

Multiple Choice

Potential difference is

the electrical energy per unit charge

across a device and its ...

• Symbol: I,

  Unit: ampere,

  Unit symbol: A

• Symbol: Q,

  Unit: ampere,

  Unit symbol: A

• Symbol: I,

  Unit: coulomb,

  Unit symbol: C

• Symbol: V,

  Unit: volt,

  Unit symbol: V

Multiple Choice

Electrical resistance is

the opposition to the flow of charges and its ...

• symbol: R,

  unit: ohm,

  unit symbol: Ω

• symbol: r

  unit: ohm

  unity symbol: Ω

• symbol: R

  unit: coulomb

  unit symbol: q or Q

• symbol: r

  unit: coulomb

  unit symbol: q or Q

Multiple Choice

Ohm's law is the relation between the voltage and the current

if the temperature of the ohmic material is constant and

its equation is .....

• $$V=\frac{I}{R}$$

• $$R=\frac{V}{I}$$

• $$I=\frac{V}{R}$$

• $$R=\frac{I}{V}$$

Electromotive force is the energy added to the electrical charges by the battery to move throught he circuit.

Unit: volts

emf

The p.d. is when electrical energy is transferred into another type of energy in a specific part of the circuit.

Unit: volts

​​potential difference

https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/latest/circuit-construction-kit-dc_en.html

​Use the above link to create the following circuit to complete the next table in your notebook:

Total Current I_total = 0.45 A
emf (battery) V_total = 9.0 V

Table #1​	​	​Resistor 1	​Resistor 2
​Electric current	0.45 A	​I1 =	​I2 =
​Potential Difference	9.0 V	V1 =​	​V2 =

​https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/latest/circuit-construction-kit-dc_en.html

Labelling

Conclusions about the SERIES connection.

Drag the correct conclusion to each empty box.

Drag labels to their correct position on the image

Current is shared

Current is the same

p.d. is shared

p.d. is the same

Drag and Drop

Characteristics of the series connection:

The total current is ​

Placeholder

on each resistor because the electrical charges​

Placeholder

.

The p.d. is​

Placeholder

because it uses the energy gradually.

Drag these tiles and drop them in the correct blank above

the same

keep the same path.

shared

find different ways to follow

​https://phet.colorado.edu/sims/html/circuit-construction-kit-dc-virtual-lab/latest/circuit-construction-kit-dc-virtual-lab_en.html

​Use the above link to create the following circuit to complete the next table in your notebook:

Total Current Itotal = 1.8 A
emf (battery) V_total = 9.0 V

​Table #2	​	​	​
​Electric current	1.8 A	​I1 =	​I2 =
​Potential Difference	9.0 V	V1 =​	​V2 =

​https://phet.colorado.edu/sims/html/circuit-construction-kit-dc-virtual-lab/latest/circuit-construction-kit-dc-virtual-lab_en.html

Drag and Drop

Characteristics of the series connection:

The total current is ​

Placeholder

on each resistor in the circuit because the electrical charges​

Placeholder

.

The p.d. is​

Placeholder

because it uses the energy as stairs.

Drag these tiles and drop them in the correct blank above

finds different paths.

constant

shared

increased and shared

increased

keeps the same path

the same

Finding the Total Resistance

Finding the total resistance depends on the type of connection.

Series Connection

Parallel Connection

Series Connection

Parallel Connection

​Example

Drag and Drop

When using the same 2 resistors and the same emf, the conclusions for Series connections are:​

​ the total resistance is​

Placeholder

and total current is

Placeholder

compared to parallel connection.

Drag these tiles and drop them in the correct blank above

higher

smaller

the same

shared

Multiple Choice

Find the total resistance if R=20Ω

• 10Ω

• 20Ω

• 40Ω

• 400Ω

Multiple Choice

Find the total resistance if R=15Ω and total current

• 30Ω and 1.6A

• 7.5Ω and 1.6A

• 30Ω and 0.63A

• 7.5Ω and 0.63A

Multiple Choice

Find the total resistance if R=4Ω and the total current.

• 12Ω and 1.0A

• 12Ω and 12A

• 3.0A and 4.0A

• 1.3Ω and 4.0A

Series Connection

Parallel Connection

Thank you!