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**What is Ohm’s law?**Ohm’s law is a fundamental principle in electrical engineering which states that the current passing through a conductor between two points is directly proportional to the voltage across the two points, provided the temperature and other physical conditions remain constant.**Who discovered Ohm’s law?**Ohm’s law was discovered by German physicist Georg Simon Ohm in 1827.**What is the formula for Ohm’s law?**The formula for Ohm’s law is I = V/R, where I is the current, V is the voltage, and R is the resistance.**What is the unit of current?**The unit of current is the ampere, which is symbolized as A.**What is the unit of voltage?**The unit of voltage is the volt, which is symbolized as V.**What is the unit of resistance?**The unit of resistance is the ohm, which is symbolized as Ω.**What is the relationship between current, voltage, and resistance?**The relationship between current, voltage, and resistance is given by Ohm’s law, which states that the current passing through a conductor between two points is directly proportional to the voltage across the two points, provided the temperature and other physical conditions remain constant.**What is the difference between direct current (DC) and alternating current (AC)?**Direct current (DC) flows in one direction only, whereas alternating current (AC) changes direction periodically.**What is the symbol for direct current?**The symbol for direct current is DC.**What is the symbol for alternating current?**The symbol for alternating current is AC.**What is the difference between a conductor and an insulator?**A conductor is a material that allows electrons to flow freely, whereas an insulator is a material that does not allow electrons to flow freely.**What is the difference between a resistor and a conductor?**A resistor is a material that resists the flow of electrons, whereas a conductor is a material that allows electrons to flow freely.**What is the symbol for resistance?**The symbol for resistance is Ω.**What is the relationship between resistance and conductance?**Resistance is the reciprocal of conductance.**What is the symbol for conductance?**The symbol for conductance is G.**What is the unit of conductance?**The unit of conductance is the siemens, which is symbolized as S.**What is the relationship between conductance and resistance?**Conductance is the reciprocal of resistance.**What is the formula for calculating resistance?**The formula for calculating resistance is R = V/I, where R is the resistance, V is the voltage, and I is the current.**What is the formula for calculating voltage?**The formula for calculating voltage is V = IR, where V is the voltage, I is the current, and R is the resistance.**What is the formula for calculating current?**The formula for calculating current is I = V/R, where I is the current, V is the voltage, and R is the resistance.**What is the difference between series and parallel circuits?**In a series circuit, the components are connected end to end, whereas in a parallel circuit, the components are connected side by side.**What is the formula for calculating total resistance in a series circuit?**The formula for calculating total resistance in a series circuit is Rtotal = R1 + R2 + R3 + …, where R1, R2, R3, and so on are the resistances of the individual components.**What is the formula for calculating total resistance in a parallel circuit?**The formula for calculating total resistance in a parallel circuit is 1/Rtotal = 1/R

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