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What is the difference between ohmic and non ohmic elements?
An 'ohmic' resistor is one which obeys Ohm's Law. For Ohm's Law to apply, the resistance of a circuit must be constant over the range of incremental voltages applied to it. If the resistance changes over an incremental range of voltages, then it is said to be 'non-ohmic', and it does not obey Ohm's Law.
Why potential difference at every point in parallel circuit is same?
Kirchof's Law - the voltages are measured between the same starting-point and end-point.
Is the current in one branch of a parallel circuit more than less than or equal to the total current entering the junction point of the circuit?
Answer: less. Answer: Kirchhoff's Current Law states that the sum of all currents into a junction (or out of a junction) must be zero. This refers to the algebraic some, that is, if you consider the current into the junction, any current entering the junction will be counted as positive, while any current leaving the junction will be counted as negative. Thus, any individual current will be equal to the negative of the sum of all the other branches at the junction.
Why are the calculated voltages and the measured voltages are near the same?
The calculated and measured voltages are typically similar due to the accurate application of Ohm's Law and the principles of circuit analysis, which account for the components' values and configurations. Additionally, high-quality measuring instruments minimize errors, and under ideal conditions, theoretical models closely represent real-world behavior. However, minor discrepancies can arise from factors like component tolerances, temperature variations, and measurement inaccuracies.
Use Ohm's Law and explain how 2 circuits have the same current but different resistance?
As we know V=IR, by changing the voltages in the two different circuits, we can maintain the same current even we have different resistance.
What is the algebraic sum of the voltages round a loop in a circuit?
Use Kirchoff's law.
Define kirchoff's voltage law?
The sum of all the voltages in a loop must be equal to zero
Is ohm's law applicable to a reverse biased P-N junction?
no it is not applicable to any of the p-n junction diode.Since p-n junction diode is a semi conductor it is not applicable.U can take any semi conductor for example............
How do you calculate series?
Kirchoff's second law......... Sum of the current at any junction equals to zero.
How do you calculate series current?
Kirchoff's second law......... Sum of the current at any junction equals to zero.
Is the sum of the separate currents equal to the total current?
Yes, in a closed circuit, the sum of the currents flowing into a junction is equal to the sum of the currents flowing out of the junction. This is known as Kirchhoff's current law.
What is the difference between ohmic and non ohmic elements?
An 'ohmic' resistor is one which obeys Ohm's Law. For Ohm's Law to apply, the resistance of a circuit must be constant over the range of incremental voltages applied to it. If the resistance changes over an incremental range of voltages, then it is said to be 'non-ohmic', and it does not obey Ohm's Law.
Is Kirchhoff's current law a restatement law of charge?
No, Kirchhoff's current law (KCL) states that the total current entering a junction is equal to the total current leaving the junction. It is a fundamental principle in circuit analysis that is used to analyze and solve circuits. Charge conservation is a separate concept that relates to the total charge in a system remaining constant over time.
Why potential difference at every point in parallel circuit is same?
Kirchof's Law - the voltages are measured between the same starting-point and end-point.
How is Kirchhoff's junction rule related to the conservation of energy?
Kirchhoff's junction rule is related to the conservation of energy because it states that the total current entering a junction in an electrical circuit must equal the total current leaving the junction. This principle is based on the law of conservation of charge, which is a fundamental principle in physics that states that charge cannot be created or destroyed, only transferred. Therefore, the application of Kirchhoff's junction rule ensures that the flow of current in a circuit is consistent with the conservation of charge and energy.
Is the current in one branch of a parallel circuit more than less than or equal to the total current entering the junction point of the circuit?
Answer: less. Answer: Kirchhoff's Current Law states that the sum of all currents into a junction (or out of a junction) must be zero. This refers to the algebraic some, that is, if you consider the current into the junction, any current entering the junction will be counted as positive, while any current leaving the junction will be counted as negative. Thus, any individual current will be equal to the negative of the sum of all the other branches at the junction.
Define electrical conductivity?
Conductivity is the inverse of resistance. Since Ohm's Law states that current is voltage divided by resistance, it also states that current is voltages times conductivity.
