Wave function help
Hi, I'm a bit stuck on this question and any help would be great I have completed part a just need help on b and c thanks!
V=2sin300t+3cos300t
(a) Express V in the form Ksin(300t+a ) where 0 ≤ α ≤ 180○.
(b) (i) Find the maximum value of V.
(ii) Find the first time that the voltage reaches 2 volts.
V=2sin300t+3cos300t
(a) Express V in the form Ksin(300t+a ) where 0 ≤ α ≤ 180○.
(b) (i) Find the maximum value of V.
(ii) Find the first time that the voltage reaches 2 volts.
Original post by Morgan1239
Hi, I'm a bit stuck on this question and any help would be great I have completed part a just need help on b and c thanks!
V=2sin300t+3cos300t
(a) Express V in the form Ksin(300t+a ) where 0 ≤ α ≤ 180○.
(b) (i) Find the maximum value of V.
(ii) Find the first time that the voltage reaches 2 volts.
V=2sin300t+3cos300t
(a) Express V in the form Ksin(300t+a ) where 0 ≤ α ≤ 180○.
(b) (i) Find the maximum value of V.
(ii) Find the first time that the voltage reaches 2 volts.
For b(i), The maximum value of sin t, where t is real, is 1. You have a sin function multiplied by a constant, so you can work out the maximum.
For c, just set V = 2.
Original post by Morgan1239
Hi, I'm a bit stuck on this question and any help would be great I have completed part a just need help on b and c thanks!
V=2sin300t+3cos300t
(a) Express V in the form Ksin(300t+a ) where 0 ≤ α ≤ 180○.
(b) (i) Find the maximum value of V.
(ii) Find the first time that the voltage reaches 2 volts.
V=2sin300t+3cos300t
(a) Express V in the form Ksin(300t+a ) where 0 ≤ α ≤ 180○.
(b) (i) Find the maximum value of V.
(ii) Find the first time that the voltage reaches 2 volts.
Maximum is Root(13) volts frrom part a, I.e K
solve Ksin(300t+a ) = 2 and look for the ist positive solution
Quick Reply
Related discussions
- A free electron is described by the wave function, .ψ (x)=Ae^i2pi/lamba x Using the
- maths
- Find Measure of a Non-Negative Measurable Function
- can someone help me with gcse physics
- The Hydrogen Atom
- A little help for a new engineering student
- Highers
- Plotting sin wave help
- How can 2 waves be in phase if they have different amplitudes?
- Edexcel A Level Physics Advanced Physics II 9PH0 02 - 9th June 2023 [Exam Chat]
- A level Physics Help
- OCR English Lit A Level Contextual Comparative Study 2021/2022
- seismic waves?
- Physics question ripples
- helppp i can't do this physics
- A level Physics waves
- GCSE Physics Study Group 2022-2023
- Does this engaa waves question even make sense??
- English Language Paper 1 Question 5
- Korean hair perm
Latest
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
