PHY12L E306 Analysis1. In a circuit, should the total voltage drop across all resistors be equal to the voltage of the battery? Explain.No, the statement is not true for all circuits. The statement only applies to series circuits, but does not apply to parallel circuits.In a series circuit, there is only one path for the current to flow, so the total voltage will be divided into each resistor. On the other hand, sincea parallel circuit has multiple paths, the battery and parallel connections will share the same voltage.2. In a series connection of resistors, does the current through a certain resistor depend on the resistance? Explain.No, the current through a certain resistor does not depend on its resistance but The current is both dependent with the sum of the resistances in every resistor and the voltage drops. The total resistance is the resistance that a single resistor would have in order to generate the same overall effect on the resistance as the combination of resistors which are present. The current due to the total resistance is constant as it flows through any given point in the circuit.3. In a parallel connection of resistors, why is the voltage drop across resistors the same even if the resistances are different?The voltage drops across resistors in a parallel connection are the same even if the resistances are different because 1 end of every resistor is connected together, and also the other end of each one is also connected to each other, to a common point. Therefore it is impossible to have a different voltage across any of the paralleled resistances.Unlike in a series circuit, the charges are taking different paths and they have the same potential which would result to equal voltage drops in each resistor.Conclusion Questions1. Consider two resistors R and 2R connected in series to a battery of voltage V. Compare the current through each resistor with the total current. Why is this so?

In connecting the resistors in series, the current in each resistor is the same with the total current since only one current flow through all the resistors that are arranged in a chain. This is the only possible path for the current to take, so all the parts of the circuit have the same current. As you increased on the resistance of the resisor, the voltage will also be increased.

2. Consider two resistors R and 2R connected in series to a battery of voltage V. Compare the voltage across each resistor with the voltage across the battery. Why is this so?In series circuit, the voltage across the battery or the source is the sum of each voltage across each resistor. The voltage from the positive terminal is greater than from the voltage of the negative terminal. The voltage is being shared and divided by all the resistors. So, the first resistors receive more voltage than the next one. This voltage drop is caused by the 3. Consider two resistors R and 2R connected in parallel to a battery of voltage V.Compare the current through each resistor with the total current. Why is this so?4. Consider two resistors R and 2R connected in parallel to a battery of voltage V.Compare the voltage across each resistor with the voltage across the battery. Why is this so?

PHY12L E306 Conclusion Questions1. Consider two resistors R and 2R connected in series to a battery of voltage V. Compare the current through each resistor with the total current. Why is this so?The current flow through the two resistors is the same with the total current flow. It is because the charge does not accumulate at any point in the series circuit and the resistors do not use it up, and since there is only a single pathway, the current passes through the series circuit at the same rate.2. Consider two resistors R and 2R connected in series to a battery of voltage V. Compare the voltage across each resistor with the voltage across the battery. Why is this so?The voltage in the positive terminal is greater than the voltage in the negative terminal of the electric circuit. The voltage in the resistors R and 2R are different because there is a voltage drop as the charge moves through components of the electric circuit. The voltage drop is caused by energy transformation within the resistor such as thermal, light, mechanical, etc. therefore the voltage is lesser when the charge reaches the end of the circuit which is the negative terminal.3. Consider two resistors R and 2R connected in parallel to a battery of voltage V. Compare the current through each resistor with the total current. Why is this so? The total current is equal to the sum of the current in the branches. The current in the two resistors R and 2R are different because the pathway is divided into branches. Since there are multiple pathways in the parallel circuit, there can be more current in one branch than there is in another.4. Consider two resistors R and 2R connected in parallel to a battery of voltage V. Compare the voltage across each resistor with the voltage across the battery. Why is this so?In the parallel circuit, the voltage across the resistors R and 2R are the same. It is because the charge will only pass through a single pathway, its either resistor R or 2R. Furthermore, there is no voltage drop until it reaches the resistor on that branch. However, when it reaches the resistor, the charge has returned nearly to zero volts and it will return to the negative terminal to have its voltage boost in order for the voltage drop to match the voltage of the battery. Thus, the voltage remains the same across the circuit.