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Cute problems with voltage - Movement. q. q. What work to bring a 6.00 C charge from infinity to halfway between the other two charges?. 24.0 cm. +1.50 C. +1.50 C. Find initial voltage Find final voltage V = final - initial Δ E p = W = Δ Vq. 1.35 J. q. q. q. q. q. q.
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Cute problems with voltage - Movement q q What work to bring a 6.00 C charge from infinity to halfway between the other two charges? 24.0 cm +1.50 C +1.50 C • Find initial voltage • Find final voltage • V = final - initial • ΔEp = W = ΔVq 1.35 J
q q q q q q +1.5 C +1.5 C +6 C 16.0 cm 8.0 cm What work to bring a 6 C charge from halfway between the other two charges to 8.0 cm from the left charge? +6 C +1.5 C +1.5 C 24.0 cm
Try this one q q q What work to bring a 13.0 C charge from halfway between the other two charges to 6.0 cm from the positive and 18 cm from the negative? +3.20 C +13.0 C -4.10 C 12.0 cm 12.0 cm Initial V -67425 V Final V 274700. V Change in V 342100. V Work 4.448 J +4.4 J
Each grid is a meter. If charge A is -14.7 μC, and charge B is +17.2 μC, calculate the voltage at points g and h, and the amount of work needed to move a +3.40 μC charge from g to h. A B y Step 1- Find the voltage at g: (-28775.6 V) g x x h x 0.144 J
Each grid is a meter. If charge A is -14.7 μC, and charge B is +17.2 μC, calculate the voltage at points g and h, and the amount of work needed to move a +3.40 μC charge from g to h. A B y Step 1- Find the voltage at g: (-28775.6 V) Step 2 – Find the voltage at h: (+13573.1 V) g x x h x 0.144 J
Each grid is a meter. If charge A is -14.7 μC, and charge B is +17.2 μC, calculate the voltage at points g and h, and the amount of work needed to move a +3.40 μC charge from g to h. A B y Step 1- Find the voltage at g: (-28775.6 V) Step 2 – Find the voltage at h: (+13573.1 V) Step 3 and 4: Find the work: (0.144 J) g x x h x 0.144 J