Electrical Circuits Quiz

KCL and KVL

• KCL is based on the fact that charge accumulation is not possible at a node.
• The algebraic sum of voltages around any closed path in a network is equal to 0.

Controlled Sources

• Controlled sources are also known as dependent sources.

Nodal Analysis

• If there are n nodes in a circuit, then (n-1) node-voltage equations are required.
• If there are 10 nodes in a circuit, 9 equations are required for nodal analysis.
• A supernode is between an essential node and a reference node.

Mesh Analysis

• A loop which does not contain any other inner loop is known as a mesh.
• Super Mesh analysis can be done when there is a common current source between any two loops.
• If there are 16 branches and 5 essential nodes, 11 equations are required to describe a circuit in mesh-current method.

Semiconductor Devices

• The most widely used semiconductive material in electronic devices is silicon.
• The majority carriers in an n-type semiconductor are conduction electrons.
• Electron-hole pairs are produced by thermal energy.
• The current in a semiconductor is produced by both electrons and holes.
• The process of adding an impurity to an intrinsic semiconductor is called doping.
• A pn junction is formed by the boundary of a p-type and an n-type material.

Diodes

• When a diode is forward-biased, the current is produced by both holes and electrons.
• For a silicon diode, the value of the forward-bias voltage typically must be greater than 0.7 V.

Rectifiers

• The average value of a half-wave rectified voltage with a peak value of 200 V is 63.7 V.
• The average value of a full-wave rectified voltage with a peak value of 75 V is 53 V.

KCL and KVL

• KCL is based on the fact that charge accumulation is not possible at a node.
• The algebraic sum of voltages around any closed path in a network is equal to 0.

Controlled Sources

• Controlled sources are also known as dependent sources.

Nodal Analysis

• If there are n nodes in a circuit, then (n-1) node-voltage equations are required.
• If there are 10 nodes in a circuit, 9 equations are required for nodal analysis.
• A supernode is between an essential node and a reference node.

Mesh Analysis

• A loop which does not contain any other inner loop is known as a mesh.
• Super Mesh analysis can be done when there is a common current source between any two loops.
• If there are 16 branches and 5 essential nodes, 11 equations are required to describe a circuit in mesh-current method.

Semiconductor Devices

• The most widely used semiconductive material in electronic devices is silicon.
• The majority carriers in an n-type semiconductor are conduction electrons.
• Electron-hole pairs are produced by thermal energy.
• The current in a semiconductor is produced by both electrons and holes.
• The process of adding an impurity to an intrinsic semiconductor is called doping.
• A pn junction is formed by the boundary of a p-type and an n-type material.

Diodes

• When a diode is forward-biased, the current is produced by both holes and electrons.
• For a silicon diode, the value of the forward-bias voltage typically must be greater than 0.7 V.

Rectifiers

• The average value of a half-wave rectified voltage with a peak value of 200 V is 63.7 V.
• The average value of a full-wave rectified voltage with a peak value of 75 V is 53 V.

Test your knowledge of electrical circuits with questions on Kirchhoff's Circuit Laws (KCL) and voltage sources.