Picture have multiple questions, please answer all of them if possible or one of them then let me know and I'll repeat the request for the other questions. Thanks Circuit PrerequesitesCurrent I is defined as I = AQ/At with thecharge of an electron being e = 1.60 × 10-¹⁹ C.1. A wire carries 2.5 mA of current. How manyelectrons pass by a given point in 32 seconds?2. 2.1 A of current passes into a junction wherethe wire splits into 2 wires. 0.5 A comes out ofone leg of the junction. (a) How much currentcomes out the 2nd leg? (b) How many electronscome out of the 2nd leg in a second?Simpler Circuits1. What is the magnitude and direction of cur-rent in the circuit below?8 V+||10 V+|||ww202. What is the magnitude and direction of thequrront in the oironit holour?For a wire R = pL/A where p is the re-sistivity of the wire, A is the area of thecross section of the wire and L it the wire'slength. Combine this with Ohm's law forsome problems: V = IR.3. 4 mA of current flows through a copper wire(p= 1.7 x 10-8 m) which is 1 mm in diameterand 6 m long.(a) What is the resistance of the 6 m-longcopper wire?(b) What is the voltage drop over the wire?4. If the electric field inside a 2.0 m long wire isE = 2.0 V/m, what is the voltage drop overthis 2.0 m distance?18 VwwwΔΩww20To solve this problem, first find the current inthe circuit. Then use V = IR to find the voltagedrop across each resistor.6 V4. What is the voltage drop across each of theresistors below?

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Circuit Prerequesites Current I is defined as I = AQ/At with the charge of an electron being e = 1.60 x 10-19 C. 1. A wire carries 2.5 mA of current. How many electrons pass by a given point in 32 seconds? 2. 2.1 A of current passes into a junction where the wire splits into 2 wires. 0.5 A comes out of one leg of the junction. (a) How much current comes out the 2nd leg? (b) How many electrons come out of the 2nd leg in a second? For a wire R = pL/A where p is the re- sistivity of the wire, A is the area of the cross section of the wire and L it the wire's length. Combine this with Ohm's law for some problems: V = IR. 3. 4 mA of current flows through a copper wire (p= 1.7 x 10-8 m) which is 1 mm in diameter and 6 m long. (a) What is the resistance of the 6 m-long copper wire? (b) What is the voltage drop over the wire? 4. If the electric field inside a 2.0 m long wire is E = 2.0 V/m, what is the voltage drop over this 2.0 m distance?

Circuit Prerequesites Current I is defined as I = AQ/At with the charge of an electron being e = 1.60 x 10-19 C. 1. A wire carries 2.5 mA of current. How many electrons pass by a given point in 32 seconds? 2. 2.1 A of current passes into a junction where the wire splits into 2 wires. 0.5 A comes out of one leg of the junction. (a) How much current comes out the 2nd leg? (b) How many electrons come out of the 2nd leg in a second? For a wire R = pL/A where p is the re- sistivity of the wire, A is the area of the cross section of the wire and L it the wire's length. Combine this with Ohm's law for some problems: V = IR. 3. 4 mA of current flows through a copper wire (p= 1.7 x 10-8 m) which is 1 mm in diameter and 6 m long. (a) What is the resistance of the 6 m-long copper wire? (b) What is the voltage drop over the wire? 4. If the electric field inside a 2.0 m long wire is E = 2.0 V/m, what is the voltage drop over this 2.0 m distance?