Part A In an integrated circuit, the current density in a 2.5-um-thick x 70-um-wide gold film is 8.0x105 A/m? How much charge flows through the film in 15 min? Express your answer to two significant figures and include the appropriate units. HẢ Q = 0.12 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback

IP Three resistors, R₁ = 30, R2 = 68 2, and R3 = R, are connected in parallel with a 12 V battery. Part A The total current flowing through the battery is 0.88 A. Find the value of resistance R. Express your answer using two significant figures. R= Submit Part B I1, I2, I3 = | ΑΣΦ Submit 3 Request Answer Find the current through each resistor. Enter your answers numerically separated by commas. Express your answers using two significant figures. [ΨΕΙ ΑΣΦ ? Request Answer Ω ? A

A material is formed into a long rod with a square cross-section 0.50 cm on each side. When a 112 VV voltage is applied across a 20-mm length of the rod, a 4.0 AA current is carried.     Part A What is the resistivity of the material? Express your answer using two significant figures.

A standard 100 W (120 V) lightbulb contains a 7.0-cm-long tungsten filament. The high- temperature resistivity of tungsten is 9.0 × 10-7 Ω m. Part A What is the diameter of the filament? Express your answer with the appropriate units. d = Submit μÅ Value Request Answer Units ****** **** ?